Finding the Third Proportional to 57,622.50 and 86,433.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,622.50 : 86,433.75 = 86,433.75 : x
2. Step 2: Convert to fraction form
   57,622.50/86,433.75 = 86,433.75/x
3. Step 3: Cross multiply
   57,622.50x = 86,433.75 × 86,433.75
4. Step 4: Simplify right side
   57,622.50x = 7,470,793,139.06
5. Step 5: Solve for x
   x = 7,470,793,139.06/57,622.50
6. Step 6: Final answer
   x = 129,650.63