Finding the Third Proportional to 156,320 and 242,412

Step by Step Solution

1. Step 1: Write the proportion equation
   156,320 : 242,412 = 242,412 : x
2. Step 2: Convert to fraction form
   156,320/242,412 = 242,412/x
3. Step 3: Cross multiply
   156,320x = 242,412 × 242,412
4. Step 4: Simplify right side
   156,320x = 58,763,577,744
5. Step 5: Solve for x
   x = 58,763,577,744/156,320
6. Step 6: Final answer
   x = 375,918.49