Finding the Third Proportional to 259,067 and 557,499.75

Step by Step Solution

1. Step 1: Write the proportion equation
   259,067 : 557,499.75 = 557,499.75 : x
2. Step 2: Convert to fraction form
   259,067/557,499.75 = 557,499.75/x
3. Step 3: Cross multiply
   259,067x = 557,499.75 × 557,499.75
4. Step 4: Simplify right side
   259,067x = 310,805,971,250.06
5. Step 5: Solve for x
   x = 310,805,971,250.06/259,067
6. Step 6: Final answer
   x = 1,199,712.70