Can an Orbi Extender using Wifi run an Ethernet cable to a computer for a wired connection?

I have an RBR50 connected to an Xfinity modem - Wireless Gateway: TG3482G (router features turned off) via ethernet cable. Then 2 more RBR50 used as extenders in my home. All devices run off of wifi. All are apple products. This system has been working great.  However due to COVID-19, I now need two work computer set ups at home. My work set ups run off of a thin client that must connect via ethernet cable.  I can hook one of them up to the Orbi router with an ethernet cable and set it up but I need to be able to hook up another one as well.  I am trying to figure out if I can run an ethernet cable out of one of the RBR50 extenders and connect it to the thin client.  Then the thin client would be connected to an ethernet cable but the internet would be accessed via wifi. The only other option that I have figured out is to run a 50-100 foot Ethernet cable through the house to get to the other computer, which is not ideal. 

The thin clients connect remotely to an internal network at work and use PC dual monitors and PC equipment.  They do not have a CPU. If anyone knows if this will work (I know doubtful) or can think of a better set up (that will not break the bank), I would be very grateful. Thank you.