Finding the Third Proportional to 1,012,464 and 2,138,766

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,464 : 2,138,766 = 2,138,766 : x
2. Step 2: Convert to fraction form
   1,012,464/2,138,766 = 2,138,766/x
3. Step 3: Cross multiply
   1,012,464x = 2,138,766 × 2,138,766
4. Step 4: Simplify right side
   1,012,464x = 4,574,320,002,756
5. Step 5: Solve for x
   x = 4,574,320,002,756/1,012,464
6. Step 6: Final answer
   x = 4,518,007.56