Finding the Third Proportional to 57,385.69 and 80,668.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,385.69 : 80,668.69 = 80,668.69 : x
2. Step 2: Convert to fraction form
   57,385.69/80,668.69 = 80,668.69/x
3. Step 3: Cross multiply
   57,385.69x = 80,668.69 × 80,668.69
4. Step 4: Simplify right side
   57,385.69x = 6,507,437,142.97
5. Step 5: Solve for x
   x = 6,507,437,142.97/57,385.69
6. Step 6: Final answer
   x = 113,398.26