Finding the Third Proportional to 132,451.31 and 283,978.13

Step by Step Solution

1. Step 1: Write the proportion equation
   132,451.31 : 283,978.13 = 283,978.13 : x
2. Step 2: Convert to fraction form
   132,451.31/283,978.13 = 283,978.13/x
3. Step 3: Cross multiply
   132,451.31x = 283,978.13 × 283,978.13
4. Step 4: Simplify right side
   132,451.31x = 80,643,575,478.52
5. Step 5: Solve for x
   x = 80,643,575,478.52/132,451.31
6. Step 6: Final answer
   x = 608,854.48