Finding the Third Proportional to 60,457.50 and 88,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,457.50 : 88,789.50 = 88,789.50 : x
2. Step 2: Convert to fraction form
   60,457.50/88,789.50 = 88,789.50/x
3. Step 3: Cross multiply
   60,457.50x = 88,789.50 × 88,789.50
4. Step 4: Simplify right side
   60,457.50x = 7,883,575,310.25
5. Step 5: Solve for x
   x = 7,883,575,310.25/60,457.50
6. Step 6: Final answer
   x = 130,398.63