Finding the Third Proportional to 258,360 and 567,648

Step by Step Solution

1. Step 1: Write the proportion equation
   258,360 : 567,648 = 567,648 : x
2. Step 2: Convert to fraction form
   258,360/567,648 = 567,648/x
3. Step 3: Cross multiply
   258,360x = 567,648 × 567,648
4. Step 4: Simplify right side
   258,360x = 322,224,251,904
5. Step 5: Solve for x
   x = 322,224,251,904/258,360
6. Step 6: Final answer
   x = 1,247,190.94