Finding the Third Proportional to 1,085,607 and 2,315,489

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,607 : 2,315,489 = 2,315,489 : x
2. Step 2: Convert to fraction form
   1,085,607/2,315,489 = 2,315,489/x
3. Step 3: Cross multiply
   1,085,607x = 2,315,489 × 2,315,489
4. Step 4: Simplify right side
   1,085,607x = 5,361,489,309,121
5. Step 5: Solve for x
   x = 5,361,489,309,121/1,085,607
6. Step 6: Final answer
   x = 4,938,701.86