Finding the Third Proportional to 31,192 and 67,372

Step by Step Solution

1. Step 1: Write the proportion equation
   31,192 : 67,372 = 67,372 : x
2. Step 2: Convert to fraction form
   31,192/67,372 = 67,372/x
3. Step 3: Cross multiply
   31,192x = 67,372 × 67,372
4. Step 4: Simplify right side
   31,192x = 4,538,986,384
5. Step 5: Solve for x
   x = 4,538,986,384/31,192
6. Step 6: Final answer
   x = 145,517.65