Finding the Third Proportional to 57,720.75 and 88,662.38

Step by Step Solution

1. Step 1: Write the proportion equation
   57,720.75 : 88,662.38 = 88,662.38 : x
2. Step 2: Convert to fraction form
   57,720.75/88,662.38 = 88,662.38/x
3. Step 3: Cross multiply
   57,720.75x = 88,662.38 × 88,662.38
4. Step 4: Simplify right side
   57,720.75x = 7,861,016,740.64
5. Step 5: Solve for x
   x = 7,861,016,740.64/57,720.75
6. Step 6: Final answer
   x = 136,190.48