Finding the Third Proportional to 31,902 and 68,906

Step by Step Solution

1. Step 1: Write the proportion equation
   31,902 : 68,906 = 68,906 : x
2. Step 2: Convert to fraction form
   31,902/68,906 = 68,906/x
3. Step 3: Cross multiply
   31,902x = 68,906 × 68,906
4. Step 4: Simplify right side
   31,902x = 4,748,036,836
5. Step 5: Solve for x
   x = 4,748,036,836/31,902
6. Step 6: Final answer
   x = 148,831.95