Finding the Third Proportional to 35,643 and 55,449

Step by Step Solution

1. Step 1: Write the proportion equation
   35,643 : 55,449 = 55,449 : x
2. Step 2: Convert to fraction form
   35,643/55,449 = 55,449/x
3. Step 3: Cross multiply
   35,643x = 55,449 × 55,449
4. Step 4: Simplify right side
   35,643x = 3,074,591,601
5. Step 5: Solve for x
   x = 3,074,591,601/35,643
6. Step 6: Final answer
   x = 86,260.74