Finding the Third Proportional to 126,855 and 200,713.50

Step by Step Solution

1. Step 1: Write the proportion equation
   126,855 : 200,713.50 = 200,713.50 : x
2. Step 2: Convert to fraction form
   126,855/200,713.50 = 200,713.50/x
3. Step 3: Cross multiply
   126,855x = 200,713.50 × 200,713.50
4. Step 4: Simplify right side
   126,855x = 40,285,909,082.25
5. Step 5: Solve for x
   x = 40,285,909,082.25/126,855
6. Step 6: Final answer
   x = 317,574.47