Finding the Third Proportional to 300.38 and 681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   300.38 : 681.94 = 681.94 : x
2. Step 2: Convert to fraction form
   300.38/681.94 = 681.94/x
3. Step 3: Cross multiply
   300.38x = 681.94 × 681.94
4. Step 4: Simplify right side
   300.38x = 465,038.75
5. Step 5: Solve for x
   x = 465,038.75/300.38
6. Step 6: Final answer
   x = 1,548.19