Finding the Third Proportional to 31,662 and 42,498

Step by Step Solution

1. Step 1: Write the proportion equation
   31,662 : 42,498 = 42,498 : x
2. Step 2: Convert to fraction form
   31,662/42,498 = 42,498/x
3. Step 3: Cross multiply
   31,662x = 42,498 × 42,498
4. Step 4: Simplify right side
   31,662x = 1,806,080,004
5. Step 5: Solve for x
   x = 1,806,080,004/31,662
6. Step 6: Final answer
   x = 57,042.51