Finding the Third Proportional to 259,245 and 539,183.25

Step by Step Solution

1. Step 1: Write the proportion equation
   259,245 : 539,183.25 = 539,183.25 : x
2. Step 2: Convert to fraction form
   259,245/539,183.25 = 539,183.25/x
3. Step 3: Cross multiply
   259,245x = 539,183.25 × 539,183.25
4. Step 4: Simplify right side
   259,245x = 290,718,577,080.56
5. Step 5: Solve for x
   x = 290,718,577,080.56/259,245
6. Step 6: Final answer
   x = 1,121,404.76