Finding the Third Proportional to 258,067.25 and 555,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   258,067.25 : 555,682.50 = 555,682.50 : x
2. Step 2: Convert to fraction form
   258,067.25/555,682.50 = 555,682.50/x
3. Step 3: Cross multiply
   258,067.25x = 555,682.50 × 555,682.50
4. Step 4: Simplify right side
   258,067.25x = 308,783,040,806.25
5. Step 5: Solve for x
   x = 308,783,040,806.25/258,067.25
6. Step 6: Final answer
   x = 1,196,521.61