Finding the Third Proportional to 103,909.50 and 224,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,909.50 : 224,221.50 = 224,221.50 : x
2. Step 2: Convert to fraction form
   103,909.50/224,221.50 = 224,221.50/x
3. Step 3: Cross multiply
   103,909.50x = 224,221.50 × 224,221.50
4. Step 4: Simplify right side
   103,909.50x = 50,275,281,062.25
5. Step 5: Solve for x
   x = 50,275,281,062.25/103,909.50
6. Step 6: Final answer
   x = 483,837.20