Finding the Third Proportional to 2,257,434 and 4,821,020

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,434 : 4,821,020 = 4,821,020 : x
2. Step 2: Convert to fraction form
   2,257,434/4,821,020 = 4,821,020/x
3. Step 3: Cross multiply
   2,257,434x = 4,821,020 × 4,821,020
4. Step 4: Simplify right side
   2,257,434x = 23,242,233,840,400
5. Step 5: Solve for x
   x = 23,242,233,840,400/2,257,434
6. Step 6: Final answer
   x = 10,295,864.17