Finding the Third Proportional to 89.46 and 124.35

Step by Step Solution

1. Step 1: Write the proportion equation
   89.46 : 124.35 = 124.35 : x
2. Step 2: Convert to fraction form
   89.46/124.35 = 124.35/x
3. Step 3: Cross multiply
   89.46x = 124.35 × 124.35
4. Step 4: Simplify right side
   89.46x = 15,462.34
5. Step 5: Solve for x
   x = 15,462.34/89.46
6. Step 6: Final answer
   x = 172.83