Finding the Third Proportional to 168.72 and 368.03

Step by Step Solution

1. Step 1: Write the proportion equation
   168.72 : 368.03 = 368.03 : x
2. Step 2: Convert to fraction form
   168.72/368.03 = 368.03/x
3. Step 3: Cross multiply
   168.72x = 368.03 × 368.03
4. Step 4: Simplify right side
   168.72x = 135,446.01
5. Step 5: Solve for x
   x = 135,446.01/168.72
6. Step 6: Final answer
   x = 802.77