Finding the Third Proportional to 143,540 and 335,268

Step by Step Solution

1. Step 1: Write the proportion equation
   143,540 : 335,268 = 335,268 : x
2. Step 2: Convert to fraction form
   143,540/335,268 = 335,268/x
3. Step 3: Cross multiply
   143,540x = 335,268 × 335,268
4. Step 4: Simplify right side
   143,540x = 112,404,631,824
5. Step 5: Solve for x
   x = 112,404,631,824/143,540
6. Step 6: Final answer
   x = 783,089.26