Finding the Third Proportional to 155,500.50 and 335,811

Step by Step Solution

1. Step 1: Write the proportion equation
   155,500.50 : 335,811 = 335,811 : x
2. Step 2: Convert to fraction form
   155,500.50/335,811 = 335,811/x
3. Step 3: Cross multiply
   155,500.50x = 335,811 × 335,811
4. Step 4: Simplify right side
   155,500.50x = 112,769,027,721
5. Step 5: Solve for x
   x = 112,769,027,721/155,500.50
6. Step 6: Final answer
   x = 725,200.42