Finding the Third Proportional to 60,012 and 129,105

Step by Step Solution

1. Step 1: Write the proportion equation
   60,012 : 129,105 = 129,105 : x
2. Step 2: Convert to fraction form
   60,012/129,105 = 129,105/x
3. Step 3: Cross multiply
   60,012x = 129,105 × 129,105
4. Step 4: Simplify right side
   60,012x = 16,668,101,025
5. Step 5: Solve for x
   x = 16,668,101,025/60,012
6. Step 6: Final answer
   x = 277,746.13