How to share network remotely from a remote computer

The company has a computer A (windows 10 system), the company only this computer A can connect to a trading center test network, usually we will write the trading center test code into the computer A test run, but due to the use of many people, resulting in the need to queue to use, a lot of code into this computer to run computer A is very stuck.

We use VPN remote connection to connect to PC A. Is there any way to share the network of this computer and use it as a gateway to forward requests so that we can all connect to the trading center test network, so that we don't need to put the program on PC A to run,

For example, the network of the trading center is 200.XX.XX.XX, which is not accessible from the external network, but only PC A can access it, for example, PC A's network IP is 172.20.20.20.

How can we achieve this so that our local computer can access 200.XX.XX.XX normally? For example, is there any way to forward our request to access 200.XX.XX.XX to 172.20.20.20, then 172.20.20.20 will access 200.XX.XX.XX and get the result, and then return to our computer by the same path.

It's like building a ladder, but unlike a ladder, we are also connected via VPN when accessing computer A:172.20.20.20. Can I ask if the normal way of building a ladder can meet this requirement?

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Or are there any links to help with this?