Finding the Third Proportional to 3,787,980 and 8,284,551

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787,980 : 8,284,551 = 8,284,551 : x
2. Step 2: Convert to fraction form
   3,787,980/8,284,551 = 8,284,551/x
3. Step 3: Cross multiply
   3,787,980x = 8,284,551 × 8,284,551
4. Step 4: Simplify right side
   3,787,980x = 68,633,785,271,601
5. Step 5: Solve for x
   x = 68,633,785,271,601/3,787,980
6. Step 6: Final answer
   x = 18,118,835.18