Finding the Third Proportional to 56.03 and 120.81

Step by Step Solution

1. Step 1: Write the proportion equation
   56.03 : 120.81 = 120.81 : x
2. Step 2: Convert to fraction form
   56.03/120.81 = 120.81/x
3. Step 3: Cross multiply
   56.03x = 120.81 × 120.81
4. Step 4: Simplify right side
   56.03x = 14,595.66
5. Step 5: Solve for x
   x = 14,595.66/56.03
6. Step 6: Final answer
   x = 260.49