Finding the Third Proportional to 258,499.31 and 568,025.63

Step by Step Solution

1. Step 1: Write the proportion equation
   258,499.31 : 568,025.63 = 568,025.63 : x
2. Step 2: Convert to fraction form
   258,499.31/568,025.63 = 568,025.63/x
3. Step 3: Cross multiply
   258,499.31x = 568,025.63 × 568,025.63
4. Step 4: Simplify right side
   258,499.31x = 322,653,110,656.64
5. Step 5: Solve for x
   x = 322,653,110,656.64/258,499.31
6. Step 6: Final answer
   x = 1,248,177.83