Subject: 2 trains leaving from LA will arive at New York and London at the same time

Hello, in our 10th grade geometry books, we have a thorem that 
states: if two cords intersect in a circle, the product of the 
lengths of the segments of one cord is = to the product of the 
lengths of the segments of the other.  in an example in the book, 
they use a train starting form LA, and reaching London, and New 
York in 42.2 minutes.  How is this possible, how can a train do 
this?  

Re: 2 trains leaving from LA will arive at New York and London at the same time