Finding the Third Proportional to 259,868 and 567,688

Step by Step Solution

1. Step 1: Write the proportion equation
   259,868 : 567,688 = 567,688 : x
2. Step 2: Convert to fraction form
   259,868/567,688 = 567,688/x
3. Step 3: Cross multiply
   259,868x = 567,688 × 567,688
4. Step 4: Simplify right side
   259,868x = 322,269,665,344
5. Step 5: Solve for x
   x = 322,269,665,344/259,868
6. Step 6: Final answer
   x = 1,240,128.32