Finding the Third Proportional to 100.22 and 187.69

Step by Step Solution

1. Step 1: Write the proportion equation
   100.22 : 187.69 = 187.69 : x
2. Step 2: Convert to fraction form
   100.22/187.69 = 187.69/x
3. Step 3: Cross multiply
   100.22x = 187.69 × 187.69
4. Step 4: Simplify right side
   100.22x = 35,226.60
5. Step 5: Solve for x
   x = 35,226.60/100.22
6. Step 6: Final answer
   x = 351.50