Finding the Third Proportional to 262,878 and 574,404

Step by Step Solution

1. Step 1: Write the proportion equation
   262,878 : 574,404 = 574,404 : x
2. Step 2: Convert to fraction form
   262,878/574,404 = 574,404/x
3. Step 3: Cross multiply
   262,878x = 574,404 × 574,404
4. Step 4: Simplify right side
   262,878x = 329,939,955,216
5. Step 5: Solve for x
   x = 329,939,955,216/262,878
6. Step 6: Final answer
   x = 1,255,106.76