Finding the Third Proportional to 276,025.50 and 591,399

Step by Step Solution

1. Step 1: Write the proportion equation
   276,025.50 : 591,399 = 591,399 : x
2. Step 2: Convert to fraction form
   276,025.50/591,399 = 591,399/x
3. Step 3: Cross multiply
   276,025.50x = 591,399 × 591,399
4. Step 4: Simplify right side
   276,025.50x = 349,752,777,201
5. Step 5: Solve for x
   x = 349,752,777,201/276,025.50
6. Step 6: Final answer
   x = 1,267,103.14