Finding the Third Proportional to 3,787,986 and 8,284,564

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787,986 : 8,284,564 = 8,284,564 : x
2. Step 2: Convert to fraction form
   3,787,986/8,284,564 = 8,284,564/x
3. Step 3: Cross multiply
   3,787,986x = 8,284,564 × 8,284,564
4. Step 4: Simplify right side
   3,787,986x = 68,634,000,670,096
5. Step 5: Solve for x
   x = 68,634,000,670,096/3,787,986
6. Step 6: Final answer
   x = 18,118,863.34