Finding the Third Proportional to 28,713 and 60,900

Step by Step Solution

1. Step 1: Write the proportion equation
   28,713 : 60,900 = 60,900 : x
2. Step 2: Convert to fraction form
   28,713/60,900 = 60,900/x
3. Step 3: Cross multiply
   28,713x = 60,900 × 60,900
4. Step 4: Simplify right side
   28,713x = 3,708,810,000
5. Step 5: Solve for x
   x = 3,708,810,000/28,713
6. Step 6: Final answer
   x = 129,168.32