Finding the Third Proportional to 269,884.50 and 396,072

Step by Step Solution

1. Step 1: Write the proportion equation
   269,884.50 : 396,072 = 396,072 : x
2. Step 2: Convert to fraction form
   269,884.50/396,072 = 396,072/x
3. Step 3: Cross multiply
   269,884.50x = 396,072 × 396,072
4. Step 4: Simplify right side
   269,884.50x = 156,873,029,184
5. Step 5: Solve for x
   x = 156,873,029,184/269,884.50
6. Step 6: Final answer
   x = 581,259.87