Finding the Third Proportional to 152,682 and 309,474

Step by Step Solution

1. Step 1: Write the proportion equation
   152,682 : 309,474 = 309,474 : x
2. Step 2: Convert to fraction form
   152,682/309,474 = 309,474/x
3. Step 3: Cross multiply
   152,682x = 309,474 × 309,474
4. Step 4: Simplify right side
   152,682x = 95,774,156,676
5. Step 5: Solve for x
   x = 95,774,156,676/152,682
6. Step 6: Final answer
   x = 627,278.64