Finding the Third Proportional to 155,512 and 335,540

Step by Step Solution

1. Step 1: Write the proportion equation
   155,512 : 335,540 = 335,540 : x
2. Step 2: Convert to fraction form
   155,512/335,540 = 335,540/x
3. Step 3: Cross multiply
   155,512x = 335,540 × 335,540
4. Step 4: Simplify right side
   155,512x = 112,587,091,600
5. Step 5: Solve for x
   x = 112,587,091,600/155,512
6. Step 6: Final answer
   x = 723,976.87