Finding the Third Proportional to 66.94 and 100.09

Step by Step Solution

1. Step 1: Write the proportion equation
   66.94 : 100.09 = 100.09 : x
2. Step 2: Convert to fraction form
   66.94/100.09 = 100.09/x
3. Step 3: Cross multiply
   66.94x = 100.09 × 100.09
4. Step 4: Simplify right side
   66.94x = 10,018.76
5. Step 5: Solve for x
   x = 10,018.76/66.94
6. Step 6: Final answer
   x = 149.67