Finding the Third Proportional to 2,143,734 and 4,463,878

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,734 : 4,463,878 = 4,463,878 : x
2. Step 2: Convert to fraction form
   2,143,734/4,463,878 = 4,463,878/x
3. Step 3: Cross multiply
   2,143,734x = 4,463,878 × 4,463,878
4. Step 4: Simplify right side
   2,143,734x = 19,926,206,798,884
5. Step 5: Solve for x
   x = 19,926,206,798,884/2,143,734
6. Step 6: Final answer
   x = 9,295,092.95