Finding the Third Proportional to 57,385.69 and 80,668.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,385.69 : 80,668.13 = 80,668.13 : x
2. Step 2: Convert to fraction form
   57,385.69/80,668.13 = 80,668.13/x
3. Step 3: Cross multiply
   57,385.69x = 80,668.13 × 80,668.13
4. Step 4: Simplify right side
   57,385.69x = 6,507,346,391.02
5. Step 5: Solve for x
   x = 6,507,346,391.02/57,385.69
6. Step 6: Final answer
   x = 113,396.68