Finding the Third Proportional to 1,012,448 and 2,138,734

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,448 : 2,138,734 = 2,138,734 : x
2. Step 2: Convert to fraction form
   1,012,448/2,138,734 = 2,138,734/x
3. Step 3: Cross multiply
   1,012,448x = 2,138,734 × 2,138,734
4. Step 4: Simplify right side
   1,012,448x = 4,574,183,122,756
5. Step 5: Solve for x
   x = 4,574,183,122,756/1,012,448
6. Step 6: Final answer
   x = 4,517,943.76