Finding the Third Proportional to 60,756 and 128,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,756 : 128,113.50 = 128,113.50 : x
2. Step 2: Convert to fraction form
   60,756/128,113.50 = 128,113.50/x
3. Step 3: Cross multiply
   60,756x = 128,113.50 × 128,113.50
4. Step 4: Simplify right side
   60,756x = 16,413,068,882.25
5. Step 5: Solve for x
   x = 16,413,068,882.25/60,756
6. Step 6: Final answer
   x = 270,147.29