Finding the Third Proportional to 396,900 and 599,035.50

Step by Step Solution

1. Step 1: Write the proportion equation
   396,900 : 599,035.50 = 599,035.50 : x
2. Step 2: Convert to fraction form
   396,900/599,035.50 = 599,035.50/x
3. Step 3: Cross multiply
   396,900x = 599,035.50 × 599,035.50
4. Step 4: Simplify right side
   396,900x = 358,843,530,260.25
5. Step 5: Solve for x
   x = 358,843,530,260.25/396,900
6. Step 6: Final answer
   x = 904,115.72