Finding the Third Proportional to 83.60 and 190.45

Step by Step Solution

1. Step 1: Write the proportion equation
   83.60 : 190.45 = 190.45 : x
2. Step 2: Convert to fraction form
   83.60/190.45 = 190.45/x
3. Step 3: Cross multiply
   83.60x = 190.45 × 190.45
4. Step 4: Simplify right side
   83.60x = 36,272.39
5. Step 5: Solve for x
   x = 36,272.39/83.60
6. Step 6: Final answer
   x = 433.87