Finding the Third Proportional to 31,341.09 and 68,397.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,341.09 : 68,397.75 = 68,397.75 : x
2. Step 2: Convert to fraction form
   31,341.09/68,397.75 = 68,397.75/x
3. Step 3: Cross multiply
   31,341.09x = 68,397.75 × 68,397.75
4. Step 4: Simplify right side
   31,341.09x = 4,678,252,205.06
5. Step 5: Solve for x
   x = 4,678,252,205.06/31,341.09
6. Step 6: Final answer
   x = 149,268.95