Finding the Third Proportional to 298.94 and 448.71

Step by Step Solution

1. Step 1: Write the proportion equation
   298.94 : 448.71 = 448.71 : x
2. Step 2: Convert to fraction form
   298.94/448.71 = 448.71/x
3. Step 3: Cross multiply
   298.94x = 448.71 × 448.71
4. Step 4: Simplify right side
   298.94x = 201,337.15
5. Step 5: Solve for x
   x = 201,337.15/298.94
6. Step 6: Final answer
   x = 673.51