Finding the Third Proportional to 28,730 and 60,939

Step by Step Solution

1. Step 1: Write the proportion equation
   28,730 : 60,939 = 60,939 : x
2. Step 2: Convert to fraction form
   28,730/60,939 = 60,939/x
3. Step 3: Cross multiply
   28,730x = 60,939 × 60,939
4. Step 4: Simplify right side
   28,730x = 3,713,561,721
5. Step 5: Solve for x
   x = 3,713,561,721/28,730
6. Step 6: Final answer
   x = 129,257.28