Finding the Third Proportional to 161,451.50 and 221,630

Step by Step Solution

1. Step 1: Write the proportion equation
   161,451.50 : 221,630 = 221,630 : x
2. Step 2: Convert to fraction form
   161,451.50/221,630 = 221,630/x
3. Step 3: Cross multiply
   161,451.50x = 221,630 × 221,630
4. Step 4: Simplify right side
   161,451.50x = 49,119,856,900
5. Step 5: Solve for x
   x = 49,119,856,900/161,451.50
6. Step 6: Final answer
   x = 304,239.09