Finding the Third Proportional to 5,321,350 and 8,221,395

Step by Step Solution

1. Step 1: Write the proportion equation
   5,321,350 : 8,221,395 = 8,221,395 : x
2. Step 2: Convert to fraction form
   5,321,350/8,221,395 = 8,221,395/x
3. Step 3: Cross multiply
   5,321,350x = 8,221,395 × 8,221,395
4. Step 4: Simplify right side
   5,321,350x = 67,591,335,746,025
5. Step 5: Solve for x
   x = 67,591,335,746,025/5,321,350
6. Step 6: Final answer
   x = 12,701,915.07