Finding the Third Proportional to 57,387.94 and 80,672.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,387.94 : 80,672.06 = 80,672.06 : x
2. Step 2: Convert to fraction form
   57,387.94/80,672.06 = 80,672.06/x
3. Step 3: Cross multiply
   57,387.94x = 80,672.06 × 80,672.06
4. Step 4: Simplify right side
   57,387.94x = 6,507,981,668.00
5. Step 5: Solve for x
   x = 6,507,981,668.00/57,387.94
6. Step 6: Final answer
   x = 113,403.30