Finding the Third Proportional to 1,863,190 and 3,991,976

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863,190 : 3,991,976 = 3,991,976 : x
2. Step 2: Convert to fraction form
   1,863,190/3,991,976 = 3,991,976/x
3. Step 3: Cross multiply
   1,863,190x = 3,991,976 × 3,991,976
4. Step 4: Simplify right side
   1,863,190x = 15,935,872,384,576
5. Step 5: Solve for x
   x = 15,935,872,384,576/1,863,190
6. Step 6: Final answer
   x = 8,553,004.46