Finding the Third Proportional to 136.94 and 223.56

Step by Step Solution

1. Step 1: Write the proportion equation
   136.94 : 223.56 = 223.56 : x
2. Step 2: Convert to fraction form
   136.94/223.56 = 223.56/x
3. Step 3: Cross multiply
   136.94x = 223.56 × 223.56
4. Step 4: Simplify right side
   136.94x = 49,980.19
5. Step 5: Solve for x
   x = 49,980.19/136.94
6. Step 6: Final answer
   x = 364.99