Finding the Third Proportional to 3,863,700 and 8,391,114

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863,700 : 8,391,114 = 8,391,114 : x
2. Step 2: Convert to fraction form
   3,863,700/8,391,114 = 8,391,114/x
3. Step 3: Cross multiply
   3,863,700x = 8,391,114 × 8,391,114
4. Step 4: Simplify right side
   3,863,700x = 70,410,794,160,996
5. Step 5: Solve for x
   x = 70,410,794,160,996/3,863,700
6. Step 6: Final answer
   x = 18,223,670.10