Finding the Third Proportional to 3,949,380,314 and 8,225,648,513

Step by Step Solution

1. Step 1: Write the proportion equation
   3,949,380,314 : 8,225,648,513 = 8,225,648,513 : x
2. Step 2: Convert to fraction form
   3,949,380,314/8,225,648,513 = 8,225,648,513/x
3. Step 3: Cross multiply
   3,949,380,314x = 8,225,648,513 × 8,225,648,513
4. Step 4: Simplify right side
   3,949,380,314x = 67,661,293,459,419,111,424
5. Step 5: Solve for x
   x = 67,661,293,459,419,111,424/3,949,380,314
6. Step 6: Final answer
   x = 17,132,129,113.92