Finding the Third Proportional to 31,614 and 67,726

Step by Step Solution

1. Step 1: Write the proportion equation
   31,614 : 67,726 = 67,726 : x
2. Step 2: Convert to fraction form
   31,614/67,726 = 67,726/x
3. Step 3: Cross multiply
   31,614x = 67,726 × 67,726
4. Step 4: Simplify right side
   31,614x = 4,586,811,076
5. Step 5: Solve for x
   x = 4,586,811,076/31,614
6. Step 6: Final answer
   x = 145,087.97