Finding the Third Proportional to 156,348 and 242,240

Step by Step Solution

1. Step 1: Write the proportion equation
   156,348 : 242,240 = 242,240 : x
2. Step 2: Convert to fraction form
   156,348/242,240 = 242,240/x
3. Step 3: Cross multiply
   156,348x = 242,240 × 242,240
4. Step 4: Simplify right side
   156,348x = 58,680,217,600
5. Step 5: Solve for x
   x = 58,680,217,600/156,348
6. Step 6: Final answer
   x = 375,317.99