Finding the Third Proportional to 1,315,920 and 1,928,255

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,920 : 1,928,255 = 1,928,255 : x
2. Step 2: Convert to fraction form
   1,315,920/1,928,255 = 1,928,255/x
3. Step 3: Cross multiply
   1,315,920x = 1,928,255 × 1,928,255
4. Step 4: Simplify right side
   1,315,920x = 3,718,167,345,025
5. Step 5: Solve for x
   x = 3,718,167,345,025/1,315,920
6. Step 6: Final answer
   x = 2,825,526.89