Finding the Third Proportional to 100.30 and 150.45

Step by Step Solution

1. Step 1: Write the proportion equation
   100.30 : 150.45 = 150.45 : x
2. Step 2: Convert to fraction form
   100.30/150.45 = 150.45/x
3. Step 3: Cross multiply
   100.30x = 150.45 × 150.45
4. Step 4: Simplify right side
   100.30x = 22,635.56
5. Step 5: Solve for x
   x = 22,635.56/100.30
6. Step 6: Final answer
   x = 225.68