Cecil, W5DXP wrote:
"I get 122.5 volts."

Dang cheap Chinese calculator operator!
Cecil is correct.

Cecil also wrote:
"Coherent voltage waves flowing in opposite directions are unaffected by
each other."

I agree, except at an impedance bump which shakes things up. Incoherent
voltage waves flowing in opposite directions are also unaffected by each
other. :-)

Best regards, Richard Harrison, KB5WZI