Finding the Third Proportional to 2,225,138 and 4,568,238

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225,138 : 4,568,238 = 4,568,238 : x
2. Step 2: Convert to fraction form
   2,225,138/4,568,238 = 4,568,238/x
3. Step 3: Cross multiply
   2,225,138x = 4,568,238 × 4,568,238
4. Step 4: Simplify right side
   2,225,138x = 20,868,798,424,644
5. Step 5: Solve for x
   x = 20,868,798,424,644/2,225,138
6. Step 6: Final answer
   x = 9,378,653.56