Finding the Third Proportional to 162,410 and 242,790

Step by Step Solution

1. Step 1: Write the proportion equation
   162,410 : 242,790 = 242,790 : x
2. Step 2: Convert to fraction form
   162,410/242,790 = 242,790/x
3. Step 3: Cross multiply
   162,410x = 242,790 × 242,790
4. Step 4: Simplify right side
   162,410x = 58,946,984,100
5. Step 5: Solve for x
   x = 58,946,984,100/162,410
6. Step 6: Final answer
   x = 362,951.69