Finding the Third Proportional to 59,539 and 128,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,539 : 128,425.50 = 128,425.50 : x
2. Step 2: Convert to fraction form
   59,539/128,425.50 = 128,425.50/x
3. Step 3: Cross multiply
   59,539x = 128,425.50 × 128,425.50
4. Step 4: Simplify right side
   59,539x = 16,493,109,050.25
5. Step 5: Solve for x
   x = 16,493,109,050.25/59,539
6. Step 6: Final answer
   x = 277,013.54