Finding the Third Proportional to 31,326.09 and 68,854.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,326.09 : 68,854.59 = 68,854.59 : x
2. Step 2: Convert to fraction form
   31,326.09/68,854.59 = 68,854.59/x
3. Step 3: Cross multiply
   31,326.09x = 68,854.59 × 68,854.59
4. Step 4: Simplify right side
   31,326.09x = 4,740,955,080.48
5. Step 5: Solve for x
   x = 4,740,955,080.48/31,326.09
6. Step 6: Final answer
   x = 151,342.04