Finding the Third Proportional to 3,787,965 and 8,284,521

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787,965 : 8,284,521 = 8,284,521 : x
2. Step 2: Convert to fraction form
   3,787,965/8,284,521 = 8,284,521/x
3. Step 3: Cross multiply
   3,787,965x = 8,284,521 × 8,284,521
4. Step 4: Simplify right side
   3,787,965x = 68,633,288,199,441
5. Step 5: Solve for x
   x = 68,633,288,199,441/3,787,965
6. Step 6: Final answer
   x = 18,118,775.70