Finding the Third Proportional to 259,407 and 568,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,407 : 568,021.50 = 568,021.50 : x
2. Step 2: Convert to fraction form
   259,407/568,021.50 = 568,021.50/x
3. Step 3: Cross multiply
   259,407x = 568,021.50 × 568,021.50
4. Step 4: Simplify right side
   259,407x = 322,648,424,462.25
5. Step 5: Solve for x
   x = 322,648,424,462.25/259,407
6. Step 6: Final answer
   x = 1,243,792.28