One lighthouse is 60 ft hgt. An opposing lighthouse is 176.5 ft high.
The distance between them is 3281 ft. The 60 ft lighthouse beam is 3281.54 ft. The 176.5 ft lighthouse beam is 3285.74 ft. At what point do they cross?
The slope of the beam from 176.5 ft house ...
The intersection point between two light beams is calculated.