Finding the Third Proportional to 162,450 and 243,674

Step by Step Solution

1. Step 1: Write the proportion equation
   162,450 : 243,674 = 243,674 : x
2. Step 2: Convert to fraction form
   162,450/243,674 = 243,674/x
3. Step 3: Cross multiply
   162,450x = 243,674 × 243,674
4. Step 4: Simplify right side
   162,450x = 59,377,018,276
5. Step 5: Solve for x
   x = 59,377,018,276/162,450
6. Step 6: Final answer
   x = 365,509.50