Finding the Third Proportional to 2,143,788 and 4,463,992

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,788 : 4,463,992 = 4,463,992 : x
2. Step 2: Convert to fraction form
   2,143,788/4,463,992 = 4,463,992/x
3. Step 3: Cross multiply
   2,143,788x = 4,463,992 × 4,463,992
4. Step 4: Simplify right side
   2,143,788x = 19,927,224,576,064
5. Step 5: Solve for x
   x = 19,927,224,576,064/2,143,788
6. Step 6: Final answer
   x = 9,295,333.58