Finding the Third Proportional to 155,142 and 335,040

Step by Step Solution

1. Step 1: Write the proportion equation
   155,142 : 335,040 = 335,040 : x
2. Step 2: Convert to fraction form
   155,142/335,040 = 335,040/x
3. Step 3: Cross multiply
   155,142x = 335,040 × 335,040
4. Step 4: Simplify right side
   155,142x = 112,251,801,600
5. Step 5: Solve for x
   x = 112,251,801,600/155,142
6. Step 6: Final answer
   x = 723,542.31