Finding the Third Proportional to 5,315,132 and 8,245,830

Step by Step Solution

1. Step 1: Write the proportion equation
   5,315,132 : 8,245,830 = 8,245,830 : x
2. Step 2: Convert to fraction form
   5,315,132/8,245,830 = 8,245,830/x
3. Step 3: Cross multiply
   5,315,132x = 8,245,830 × 8,245,830
4. Step 4: Simplify right side
   5,315,132x = 67,993,712,388,900
5. Step 5: Solve for x
   x = 67,993,712,388,900/5,315,132
6. Step 6: Final answer
   x = 12,792,478.60