Connect PC to laptop with android

Is it possible to connect PC to laptop with Android phone to share files between PC and laptop? I don't have a LAN cable, all I have is:
A PC without WiFi adapter.
An Android USB cable.
An Android phone.
A laptop with built-in WiFi.
Both PC and laptop have Windows 7.

What I'm trying to do is:
1. Connect Android to PC with USB tethering.
2. Then connect Android to laptop with WiFi tethering.
3. Then I want to share files between PC and laptop.

I don't know much about networking stuff.
Please tell me if you know.