Finding the Third Proportional to 59,575.50 and 87,539.06

Step by Step Solution

1. Step 1: Write the proportion equation
   59,575.50 : 87,539.06 = 87,539.06 : x
2. Step 2: Convert to fraction form
   59,575.50/87,539.06 = 87,539.06/x
3. Step 3: Cross multiply
   59,575.50x = 87,539.06 × 87,539.06
4. Step 4: Simplify right side
   59,575.50x = 7,663,087,463.38
5. Step 5: Solve for x
   x = 7,663,087,463.38/59,575.50
6. Step 6: Final answer
   x = 128,628.17