Finding the Third Proportional to 45,234 and 99,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,234 : 99,490.50 = 99,490.50 : x
2. Step 2: Convert to fraction form
   45,234/99,490.50 = 99,490.50/x
3. Step 3: Cross multiply
   45,234x = 99,490.50 × 99,490.50
4. Step 4: Simplify right side
   45,234x = 9,898,359,590.25
5. Step 5: Solve for x
   x = 9,898,359,590.25/45,234
6. Step 6: Final answer
   x = 218,825.65