Finding the Third Proportional to 162,458 and 242,340

Step by Step Solution

1. Step 1: Write the proportion equation
   162,458 : 242,340 = 242,340 : x
2. Step 2: Convert to fraction form
   162,458/242,340 = 242,340/x
3. Step 3: Cross multiply
   162,458x = 242,340 × 242,340
4. Step 4: Simplify right side
   162,458x = 58,728,675,600
5. Step 5: Solve for x
   x = 58,728,675,600/162,458
6. Step 6: Final answer
   x = 361,500.67