Finding the Third Proportional to 259,391.25 and 567,990

Step by Step Solution

1. Step 1: Write the proportion equation
   259,391.25 : 567,990 = 567,990 : x
2. Step 2: Convert to fraction form
   259,391.25/567,990 = 567,990/x
3. Step 3: Cross multiply
   259,391.25x = 567,990 × 567,990
4. Step 4: Simplify right side
   259,391.25x = 322,612,640,100
5. Step 5: Solve for x
   x = 322,612,640,100/259,391.25
6. Step 6: Final answer
   x = 1,243,729.85