Finding the Third Proportional to 262,530 and 396,200.25

Step by Step Solution

1. Step 1: Write the proportion equation
   262,530 : 396,200.25 = 396,200.25 : x
2. Step 2: Convert to fraction form
   262,530/396,200.25 = 396,200.25/x
3. Step 3: Cross multiply
   262,530x = 396,200.25 × 396,200.25
4. Step 4: Simplify right side
   262,530x = 156,974,638,100.06
5. Step 5: Solve for x
   x = 156,974,638,100.06/262,530
6. Step 6: Final answer
   x = 597,930.29