Finding the Third Proportional to 300.38 and 448.88

Step by Step Solution

1. Step 1: Write the proportion equation
   300.38 : 448.88 = 448.88 : x
2. Step 2: Convert to fraction form
   300.38/448.88 = 448.88/x
3. Step 3: Cross multiply
   300.38x = 448.88 × 448.88
4. Step 4: Simplify right side
   300.38x = 201,488.77
5. Step 5: Solve for x
   x = 201,488.77/300.38
6. Step 6: Final answer
   x = 670.79