Finding the Third Proportional to 59,660 and 128,662

Step by Step Solution

1. Step 1: Write the proportion equation
   59,660 : 128,662 = 128,662 : x
2. Step 2: Convert to fraction form
   59,660/128,662 = 128,662/x
3. Step 3: Cross multiply
   59,660x = 128,662 × 128,662
4. Step 4: Simplify right side
   59,660x = 16,553,910,244
5. Step 5: Solve for x
   x = 16,553,910,244/59,660
6. Step 6: Final answer
   x = 277,470.84