Finding the Third Proportional to 162,446 and 243,670

Step by Step Solution

1. Step 1: Write the proportion equation
   162,446 : 243,670 = 243,670 : x
2. Step 2: Convert to fraction form
   162,446/243,670 = 243,670/x
3. Step 3: Cross multiply
   162,446x = 243,670 × 243,670
4. Step 4: Simplify right side
   162,446x = 59,375,068,900
5. Step 5: Solve for x
   x = 59,375,068,900/162,446
6. Step 6: Final answer
   x = 365,506.50