Finding the Third Proportional to 99,445.50 and 207,234

Step by Step Solution

1. Step 1: Write the proportion equation
   99,445.50 : 207,234 = 207,234 : x
2. Step 2: Convert to fraction form
   99,445.50/207,234 = 207,234/x
3. Step 3: Cross multiply
   99,445.50x = 207,234 × 207,234
4. Step 4: Simplify right side
   99,445.50x = 42,945,930,756
5. Step 5: Solve for x
   x = 42,945,930,756/99,445.50
6. Step 6: Final answer
   x = 431,853.94