Finding the Third Proportional to 57,260.50 and 85,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,260.50 : 85,627.50 = 85,627.50 : x
2. Step 2: Convert to fraction form
   57,260.50/85,627.50 = 85,627.50/x
3. Step 3: Cross multiply
   57,260.50x = 85,627.50 × 85,627.50
4. Step 4: Simplify right side
   57,260.50x = 7,332,068,756.25
5. Step 5: Solve for x
   x = 7,332,068,756.25/57,260.50
6. Step 6: Final answer
   x = 128,047.59