Finding the Third Proportional to 158,474 and 345,380

Step by Step Solution

1. Step 1: Write the proportion equation
   158,474 : 345,380 = 345,380 : x
2. Step 2: Convert to fraction form
   158,474/345,380 = 345,380/x
3. Step 3: Cross multiply
   158,474x = 345,380 × 345,380
4. Step 4: Simplify right side
   158,474x = 119,287,344,400
5. Step 5: Solve for x
   x = 119,287,344,400/158,474
6. Step 6: Final answer
   x = 752,725.02