Finding the Third Proportional to 3,949,380,315 and 8,225,648,514

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949,380,315 : 8,225,648,514 = 8,225,648,514 : x
2. Step 2: Convert to fraction form
   3,949,380,315/8,225,648,514 = 8,225,648,514/x
3. Step 3: Cross multiply
   3,949,380,315x = 8,225,648,514 × 8,225,648,514
4. Step 4: Simplify right side
   3,949,380,315x = 67,661,293,475,870,408,704
5. Step 5: Solve for x
   x = 67,661,293,475,870,408,704/3,949,380,315
6. Step 6: Final answer
   x = 17,132,129,113.75