Finding the Third Proportional to 156,356 and 242,180

Step by Step Solution

1. Step 1: Write the proportion equation
   156,356 : 242,180 = 242,180 : x
2. Step 2: Convert to fraction form
   156,356/242,180 = 242,180/x
3. Step 3: Cross multiply
   156,356x = 242,180 × 242,180
4. Step 4: Simplify right side
   156,356x = 58,651,152,400
5. Step 5: Solve for x
   x = 58,651,152,400/156,356
6. Step 6: Final answer
   x = 375,112.90