Finding the Third Proportional to 2,257,438 and 4,821,028

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,438 : 4,821,028 = 4,821,028 : x
2. Step 2: Convert to fraction form
   2,257,438/4,821,028 = 4,821,028/x
3. Step 3: Cross multiply
   2,257,438x = 4,821,028 × 4,821,028
4. Step 4: Simplify right side
   2,257,438x = 23,242,310,976,784
5. Step 5: Solve for x
   x = 23,242,310,976,784/2,257,438
6. Step 6: Final answer
   x = 10,295,880.10