Finding the Third Proportional to 3,826,390 and 8,399,183

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826,390 : 8,399,183 = 8,399,183 : x
2. Step 2: Convert to fraction form
   3,826,390/8,399,183 = 8,399,183/x
3. Step 3: Cross multiply
   3,826,390x = 8,399,183 × 8,399,183
4. Step 4: Simplify right side
   3,826,390x = 70,546,275,067,489
5. Step 5: Solve for x
   x = 70,546,275,067,489/3,826,390
6. Step 6: Final answer
   x = 18,436,770.71