Finding the Third Proportional to 62,649 and 90,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,649 : 90,517.50 = 90,517.50 : x
2. Step 2: Convert to fraction form
   62,649/90,517.50 = 90,517.50/x
3. Step 3: Cross multiply
   62,649x = 90,517.50 × 90,517.50
4. Step 4: Simplify right side
   62,649x = 8,193,417,806.25
5. Step 5: Solve for x
   x = 8,193,417,806.25/62,649
6. Step 6: Final answer
   x = 130,782.90