Finding the Third Proportional to 90.47 and 191.67

Step by Step Solution

1. Step 1: Write the proportion equation
   90.47 : 191.67 = 191.67 : x
2. Step 2: Convert to fraction form
   90.47/191.67 = 191.67/x
3. Step 3: Cross multiply
   90.47x = 191.67 × 191.67
4. Step 4: Simplify right side
   90.47x = 36,738.11
5. Step 5: Solve for x
   x = 36,738.11/90.47
6. Step 6: Final answer
   x = 406.09