Finding the Third Proportional to 59,575.50 and 87,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,575.50 : 87,358.50 = 87,358.50 : x
2. Step 2: Convert to fraction form
   59,575.50/87,358.50 = 87,358.50/x
3. Step 3: Cross multiply
   59,575.50x = 87,358.50 × 87,358.50
4. Step 4: Simplify right side
   59,575.50x = 7,631,507,522.25
5. Step 5: Solve for x
   x = 7,631,507,522.25/59,575.50
6. Step 6: Final answer
   x = 128,098.09