Finding the Third Proportional to 240,570 and 518,258.25

Step by Step Solution

1. Step 1: Write the proportion equation
   240,570 : 518,258.25 = 518,258.25 : x
2. Step 2: Convert to fraction form
   240,570/518,258.25 = 518,258.25/x
3. Step 3: Cross multiply
   240,570x = 518,258.25 × 518,258.25
4. Step 4: Simplify right side
   240,570x = 268,591,613,693.06
5. Step 5: Solve for x
   x = 268,591,613,693.06/240,570
6. Step 6: Final answer
   x = 1,116,480.08