Finding the Third Proportional to 158,126 and 342,496

Step by Step Solution

1. Step 1: Write the proportion equation
   158,126 : 342,496 = 342,496 : x
2. Step 2: Convert to fraction form
   158,126/342,496 = 342,496/x
3. Step 3: Cross multiply
   158,126x = 342,496 × 342,496
4. Step 4: Simplify right side
   158,126x = 117,303,510,016
5. Step 5: Solve for x
   x = 117,303,510,016/158,126
6. Step 6: Final answer
   x = 741,835.69