Finding the Third Proportional to 4,110,624 and 8,664,408

Step by Step Solution

1. Step 1: Write the proportion equation
   4,110,624 : 8,664,408 = 8,664,408 : x
2. Step 2: Convert to fraction form
   4,110,624/8,664,408 = 8,664,408/x
3. Step 3: Cross multiply
   4,110,624x = 8,664,408 × 8,664,408
4. Step 4: Simplify right side
   4,110,624x = 75,071,965,990,464
5. Step 5: Solve for x
   x = 75,071,965,990,464/4,110,624
6. Step 6: Final answer
   x = 18,262,912.39