Finding the Third Proportional to 276,028 and 591,404

Step by Step Solution

1. Step 1: Write the proportion equation
   276,028 : 591,404 = 591,404 : x
2. Step 2: Convert to fraction form
   276,028/591,404 = 591,404/x
3. Step 3: Cross multiply
   276,028x = 591,404 × 591,404
4. Step 4: Simplify right side
   276,028x = 349,758,691,216
5. Step 5: Solve for x
   x = 349,758,691,216/276,028
6. Step 6: Final answer
   x = 1,267,113.09