Finding the Third Proportional to 80.86 and 190.83

Step by Step Solution

1. Step 1: Write the proportion equation
   80.86 : 190.83 = 190.83 : x
2. Step 2: Convert to fraction form
   80.86/190.83 = 190.83/x
3. Step 3: Cross multiply
   80.86x = 190.83 × 190.83
4. Step 4: Simplify right side
   80.86x = 36,415.37
5. Step 5: Solve for x
   x = 36,415.37/80.86
6. Step 6: Final answer
   x = 450.35