Finding the Third Proportional to 190.69 and 300.80

Step by Step Solution

1. Step 1: Write the proportion equation
   190.69 : 300.80 = 300.80 : x
2. Step 2: Convert to fraction form
   190.69/300.80 = 300.80/x
3. Step 3: Cross multiply
   190.69x = 300.80 × 300.80
4. Step 4: Simplify right side
   190.69x = 90,478.76
5. Step 5: Solve for x
   x = 90,478.76/190.69
6. Step 6: Final answer
   x = 474.49