Finding the Third Proportional to 28,716 and 60,911

Step by Step Solution

1. Step 1: Write the proportion equation
   28,716 : 60,911 = 60,911 : x
2. Step 2: Convert to fraction form
   28,716/60,911 = 60,911/x
3. Step 3: Cross multiply
   28,716x = 60,911 × 60,911
4. Step 4: Simplify right side
   28,716x = 3,710,149,921
5. Step 5: Solve for x
   x = 3,710,149,921/28,716
6. Step 6: Final answer
   x = 129,201.49