Finding the Third Proportional to 190.69 and 417.02

Step by Step Solution

1. Step 1: Write the proportion equation
   190.69 : 417.02 = 417.02 : x
2. Step 2: Convert to fraction form
   190.69/417.02 = 417.02/x
3. Step 3: Cross multiply
   190.69x = 417.02 × 417.02
4. Step 4: Simplify right side
   190.69x = 173,908.55
5. Step 5: Solve for x
   x = 173,908.55/190.69
6. Step 6: Final answer
   x = 912.01