Finding the Third Proportional to 5,647,420 and 8,484,005

Step by Step Solution

1. Step 1: Write the proportion equation
   5,647,420 : 8,484,005 = 8,484,005 : x
2. Step 2: Convert to fraction form
   5,647,420/8,484,005 = 8,484,005/x
3. Step 3: Cross multiply
   5,647,420x = 8,484,005 × 8,484,005
4. Step 4: Simplify right side
   5,647,420x = 71,978,340,840,025
5. Step 5: Solve for x
   x = 71,978,340,840,025/5,647,420
6. Step 6: Final answer
   x = 12,745,349.35