Finding the Third Proportional to 3,420,808 and 7,383,992

Step by Step Solution

1. Step 1: Write the proportion equation
   3,420,808 : 7,383,992 = 7,383,992 : x
2. Step 2: Convert to fraction form
   3,420,808/7,383,992 = 7,383,992/x
3. Step 3: Cross multiply
   3,420,808x = 7,383,992 × 7,383,992
4. Step 4: Simplify right side
   3,420,808x = 54,523,337,856,064
5. Step 5: Solve for x
   x = 54,523,337,856,064/3,420,808
6. Step 6: Final answer
   x = 15,938,730.81