Finding the Third Proportional to 855,658 and 1,315,323

Step by Step Solution

1. Step 1: Write the proportion equation
   855,658 : 1,315,323 = 1,315,323 : x
2. Step 2: Convert to fraction form
   855,658/1,315,323 = 1,315,323/x
3. Step 3: Cross multiply
   855,658x = 1,315,323 × 1,315,323
4. Step 4: Simplify right side
   855,658x = 1,730,074,594,329
5. Step 5: Solve for x
   x = 1,730,074,594,329/855,658
6. Step 6: Final answer
   x = 2,021,923.00