Finding the Third Proportional to 89.08 and 191.45

Step by Step Solution

1. Step 1: Write the proportion equation
   89.08 : 191.45 = 191.45 : x
2. Step 2: Convert to fraction form
   89.08/191.45 = 191.45/x
3. Step 3: Cross multiply
   89.08x = 191.45 × 191.45
4. Step 4: Simplify right side
   89.08x = 36,654.30
5. Step 5: Solve for x
   x = 36,654.30/89.08
6. Step 6: Final answer
   x = 411.48