Finding the Third Proportional to 158,771 and 342,469

Step by Step Solution

1. Step 1: Write the proportion equation
   158,771 : 342,469 = 342,469 : x
2. Step 2: Convert to fraction form
   158,771/342,469 = 342,469/x
3. Step 3: Cross multiply
   158,771x = 342,469 × 342,469
4. Step 4: Simplify right side
   158,771x = 117,285,015,961
5. Step 5: Solve for x
   x = 117,285,015,961/158,771
6. Step 6: Final answer
   x = 738,705.53