Finding the Third Proportional to 28,874 and 63,040

Step by Step Solution

1. Step 1: Write the proportion equation
   28,874 : 63,040 = 63,040 : x
2. Step 2: Convert to fraction form
   28,874/63,040 = 63,040/x
3. Step 3: Cross multiply
   28,874x = 63,040 × 63,040
4. Step 4: Simplify right side
   28,874x = 3,974,041,600
5. Step 5: Solve for x
   x = 3,974,041,600/28,874
6. Step 6: Final answer
   x = 137,633.91