Finding the Third Proportional to 63,879.50 and 134,380

Step by Step Solution

1. Step 1: Write the proportion equation
   63,879.50 : 134,380 = 134,380 : x
2. Step 2: Convert to fraction form
   63,879.50/134,380 = 134,380/x
3. Step 3: Cross multiply
   63,879.50x = 134,380 × 134,380
4. Step 4: Simplify right side
   63,879.50x = 18,057,984,400
5. Step 5: Solve for x
   x = 18,057,984,400/63,879.50
6. Step 6: Final answer
   x = 282,688.26