Finding the Third Proportional to 156,354 and 242,254

Step by Step Solution

1. Step 1: Write the proportion equation
   156,354 : 242,254 = 242,254 : x
2. Step 2: Convert to fraction form
   156,354/242,254 = 242,254/x
3. Step 3: Cross multiply
   156,354x = 242,254 × 242,254
4. Step 4: Simplify right side
   156,354x = 58,687,000,516
5. Step 5: Solve for x
   x = 58,687,000,516/156,354
6. Step 6: Final answer
   x = 375,346.97