Finding the Third Proportional to 126,661.50 and 200,560.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,661.50 : 200,560.50 = 200,560.50 : x
2. Step 2: Convert to fraction form
   126,661.50/200,560.50 = 200,560.50/x
3. Step 3: Cross multiply
   126,661.50x = 200,560.50 × 200,560.50
4. Step 4: Simplify right side
   126,661.50x = 40,224,514,160.25
5. Step 5: Solve for x
   x = 40,224,514,160.25/126,661.50
6. Step 6: Final answer
   x = 317,574.91