Finding the Third Proportional to 31,242.38 and 67,101.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,242.38 : 67,101.75 = 67,101.75 : x
2. Step 2: Convert to fraction form
   31,242.38/67,101.75 = 67,101.75/x
3. Step 3: Cross multiply
   31,242.38x = 67,101.75 × 67,101.75
4. Step 4: Simplify right side
   31,242.38x = 4,502,644,853.06
5. Step 5: Solve for x
   x = 4,502,644,853.06/31,242.38
6. Step 6: Final answer
   x = 144,119.80