Finding the Third Proportional to 2,143,780 and 4,463,976

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,780 : 4,463,976 = 4,463,976 : x
2. Step 2: Convert to fraction form
   2,143,780/4,463,976 = 4,463,976/x
3. Step 3: Cross multiply
   2,143,780x = 4,463,976 × 4,463,976
4. Step 4: Simplify right side
   2,143,780x = 19,927,081,728,576
5. Step 5: Solve for x
   x = 19,927,081,728,576/2,143,780
6. Step 6: Final answer
   x = 9,295,301.63