Finding the Third Proportional to 86.48 and 190.03

Step by Step Solution

1. Step 1: Write the proportion equation
   86.48 : 190.03 = 190.03 : x
2. Step 2: Convert to fraction form
   86.48/190.03 = 190.03/x
3. Step 3: Cross multiply
   86.48x = 190.03 × 190.03
4. Step 4: Simplify right side
   86.48x = 36,111.88
5. Step 5: Solve for x
   x = 36,111.88/86.48
6. Step 6: Final answer
   x = 417.55