Finding the Third Proportional to 280.69 and 300.94

Step by Step Solution

1. Step 1: Write the proportion equation
   280.69 : 300.94 = 300.94 : x
2. Step 2: Convert to fraction form
   280.69/300.94 = 300.94/x
3. Step 3: Cross multiply
   280.69x = 300.94 × 300.94
4. Step 4: Simplify right side
   280.69x = 90,563.38
5. Step 5: Solve for x
   x = 90,563.38/280.69
6. Step 6: Final answer
   x = 322.65