Finding the Third Proportional to 300.94 and 579.38

Step by Step Solution

1. Step 1: Write the proportion equation
   300.94 : 579.38 = 579.38 : x
2. Step 2: Convert to fraction form
   300.94/579.38 = 579.38/x
3. Step 3: Cross multiply
   300.94x = 579.38 × 579.38
4. Step 4: Simplify right side
   300.94x = 335,675.39
5. Step 5: Solve for x
   x = 335,675.39/300.94
6. Step 6: Final answer
   x = 1,115.43