Finding the Third Proportional to 478,368 and 1,040,820

Step by Step Solution

1. Step 1: Write the proportion equation
   478,368 : 1,040,820 = 1,040,820 : x
2. Step 2: Convert to fraction form
   478,368/1,040,820 = 1,040,820/x
3. Step 3: Cross multiply
   478,368x = 1,040,820 × 1,040,820
4. Step 4: Simplify right side
   478,368x = 1,083,306,272,400
5. Step 5: Solve for x
   x = 1,083,306,272,400/478,368
6. Step 6: Final answer
   x = 2,264,587.67