Can I port forward from one router to another?

With my Verizon wireless modem, I want to connect to my shop’s LAN. In my shop, I have a SMCD3G router/gateway from Comcast. Down the line from this, I have a Netgear N150 router, where my test computer is hooked up. Gateway address is 10.1.10.1, and netgear address is 192.168.1.1. I cannot connect to test computer from outside the LAN. I want to keep the Netgear in my network, because it speeds up my internet.
Is this just a port forwarding problem, or am I not connecting these devices correctly?

P.S. I connect remotely with PCAnywhere.