Finding the Third Proportional to 2,568,954 and 5,646,390

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568,954 : 5,646,390 = 5,646,390 : x
2. Step 2: Convert to fraction form
   2,568,954/5,646,390 = 5,646,390/x
3. Step 3: Cross multiply
   2,568,954x = 5,646,390 × 5,646,390
4. Step 4: Simplify right side
   2,568,954x = 31,881,720,032,100
5. Step 5: Solve for x
   x = 31,881,720,032,100/2,568,954
6. Step 6: Final answer
   x = 12,410,389.61