Finding the Third Proportional to 90.69 and 151.06

Step by Step Solution

1. Step 1: Write the proportion equation
   90.69 : 151.06 = 151.06 : x
2. Step 2: Convert to fraction form
   90.69/151.06 = 151.06/x
3. Step 3: Cross multiply
   90.69x = 151.06 × 151.06
4. Step 4: Simplify right side
   90.69x = 22,819.88
5. Step 5: Solve for x
   x = 22,819.88/90.69
6. Step 6: Final answer
   x = 251.63