Finding the Third Proportional to 103,909.50 and 223,711.88

Step by Step Solution

1. Step 1: Write the proportion equation
   103,909.50 : 223,711.88 = 223,711.88 : x
2. Step 2: Convert to fraction form
   103,909.50/223,711.88 = 223,711.88/x
3. Step 3: Cross multiply
   103,909.50x = 223,711.88 × 223,711.88
4. Step 4: Simplify right side
   103,909.50x = 50,047,003,016.02
5. Step 5: Solve for x
   x = 50,047,003,016.02/103,909.50
6. Step 6: Final answer
   x = 481,640.30