Finding the Third Proportional to 3,740,408 and 8,078,686

Step by Step Solution

1. Step 1: Write the proportion equation
   3,740,408 : 8,078,686 = 8,078,686 : x
2. Step 2: Convert to fraction form
   3,740,408/8,078,686 = 8,078,686/x
3. Step 3: Cross multiply
   3,740,408x = 8,078,686 × 8,078,686
4. Step 4: Simplify right side
   3,740,408x = 65,265,167,486,596
5. Step 5: Solve for x
   x = 65,265,167,486,596/3,740,408
6. Step 6: Final answer
   x = 17,448,676.05