Finding the Third Proportional to 300.25 and 441.25

Step by Step Solution

1. Step 1: Write the proportion equation
   300.25 : 441.25 = 441.25 : x
2. Step 2: Convert to fraction form
   300.25/441.25 = 441.25/x
3. Step 3: Cross multiply
   300.25x = 441.25 × 441.25
4. Step 4: Simplify right side
   300.25x = 194,701.56
5. Step 5: Solve for x
   x = 194,701.56/300.25
6. Step 6: Final answer
   x = 648.46