Finding the Third Proportional to 1,085,603 and 2,315,481

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,603 : 2,315,481 = 2,315,481 : x
2. Step 2: Convert to fraction form
   1,085,603/2,315,481 = 2,315,481/x
3. Step 3: Cross multiply
   1,085,603x = 2,315,481 × 2,315,481
4. Step 4: Simplify right side
   1,085,603x = 5,361,452,261,361
5. Step 5: Solve for x
   x = 5,361,452,261,361/1,085,603
6. Step 6: Final answer
   x = 4,938,685.93