Finding the Third Proportional to 31,252 and 67,712

Step by Step Solution

1. Step 1: Write the proportion equation
   31,252 : 67,712 = 67,712 : x
2. Step 2: Convert to fraction form
   31,252/67,712 = 67,712/x
3. Step 3: Cross multiply
   31,252x = 67,712 × 67,712
4. Step 4: Simplify right side
   31,252x = 4,584,914,944
5. Step 5: Solve for x
   x = 4,584,914,944/31,252
6. Step 6: Final answer
   x = 146,707.89