Finding the Third Proportional to 1,085,557 and 2,315,392

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,557 : 2,315,392 = 2,315,392 : x
2. Step 2: Convert to fraction form
   1,085,557/2,315,392 = 2,315,392/x
3. Step 3: Cross multiply
   1,085,557x = 2,315,392 × 2,315,392
4. Step 4: Simplify right side
   1,085,557x = 5,361,040,113,664
5. Step 5: Solve for x
   x = 5,361,040,113,664/1,085,557
6. Step 6: Final answer
   x = 4,938,515.54