Finding the Third Proportional to 266,874 and 580,404

Step by Step Solution

1. Step 1: Write the proportion equation
   266,874 : 580,404 = 580,404 : x
2. Step 2: Convert to fraction form
   266,874/580,404 = 580,404/x
3. Step 3: Cross multiply
   266,874x = 580,404 × 580,404
4. Step 4: Simplify right side
   266,874x = 336,868,803,216
5. Step 5: Solve for x
   x = 336,868,803,216/266,874
6. Step 6: Final answer
   x = 1,262,276.59