Finding the Third Proportional to 72.49 and 112.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72.49 : 112.46 = 112.46 : x
2. Step 2: Convert to fraction form
   72.49/112.46 = 112.46/x
3. Step 3: Cross multiply
   72.49x = 112.46 × 112.46
4. Step 4: Simplify right side
   72.49x = 12,648.34
5. Step 5: Solve for x
   x = 12,648.34/72.49
6. Step 6: Final answer
   x = 174.48