Finding the Third Proportional to 443.63 and 635.25

Step by Step Solution

1. Step 1: Write the proportion equation
   443.63 : 635.25 = 635.25 : x
2. Step 2: Convert to fraction form
   443.63/635.25 = 635.25/x
3. Step 3: Cross multiply
   443.63x = 635.25 × 635.25
4. Step 4: Simplify right side
   443.63x = 403,542.56
5. Step 5: Solve for x
   x = 403,542.56/443.63
6. Step 6: Final answer
   x = 909.65