Finding the Third Proportional to 3,360,678 and 7,374,539

Step by Step Solution

1. Step 1: Write the proportion equation
   3,360,678 : 7,374,539 = 7,374,539 : x
2. Step 2: Convert to fraction form
   3,360,678/7,374,539 = 7,374,539/x
3. Step 3: Cross multiply
   3,360,678x = 7,374,539 × 7,374,539
4. Step 4: Simplify right side
   3,360,678x = 54,383,825,462,521
5. Step 5: Solve for x
   x = 54,383,825,462,521/3,360,678
6. Step 6: Final answer
   x = 16,182,396.96