Finding the Third Proportional to 263.81 and 443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   263.81 : 443.25 = 443.25 : x
2. Step 2: Convert to fraction form
   263.81/443.25 = 443.25/x
3. Step 3: Cross multiply
   263.81x = 443.25 × 443.25
4. Step 4: Simplify right side
   263.81x = 196,470.56
5. Step 5: Solve for x
   x = 196,470.56/263.81
6. Step 6: Final answer
   x = 744.74