Finding the Third Proportional to 307,491 and 675,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   307,491 : 675,520.50 = 675,520.50 : x
2. Step 2: Convert to fraction form
   307,491/675,520.50 = 675,520.50/x
3. Step 3: Cross multiply
   307,491x = 675,520.50 × 675,520.50
4. Step 4: Simplify right side
   307,491x = 456,327,945,920.25
5. Step 5: Solve for x
   x = 456,327,945,920.25/307,491
6. Step 6: Final answer
   x = 1,484,036.76