Finding the Third Proportional to 124,443 and 199,624.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,443 : 199,624.50 = 199,624.50 : x
2. Step 2: Convert to fraction form
   124,443/199,624.50 = 199,624.50/x
3. Step 3: Cross multiply
   124,443x = 199,624.50 × 199,624.50
4. Step 4: Simplify right side
   124,443x = 39,849,941,000.25
5. Step 5: Solve for x
   x = 39,849,941,000.25/124,443
6. Step 6: Final answer
   x = 320,226.46