Finding the Third Proportional to 309,674 and 452,562

Step by Step Solution

1. Step 1: Write the proportion equation
   309,674 : 452,562 = 452,562 : x
2. Step 2: Convert to fraction form
   309,674/452,562 = 452,562/x
3. Step 3: Cross multiply
   309,674x = 452,562 × 452,562
4. Step 4: Simplify right side
   309,674x = 204,812,363,844
5. Step 5: Solve for x
   x = 204,812,363,844/309,674
6. Step 6: Final answer
   x = 661,380.56