Finding the Third Proportional to 422,277 and 879,499

Step by Step Solution

1. Step 1: Write the proportion equation
   422,277 : 879,499 = 879,499 : x
2. Step 2: Convert to fraction form
   422,277/879,499 = 879,499/x
3. Step 3: Cross multiply
   422,277x = 879,499 × 879,499
4. Step 4: Simplify right side
   422,277x = 773,518,491,001
5. Step 5: Solve for x
   x = 773,518,491,001/422,277
6. Step 6: Final answer
   x = 1,831,779.83