Finding the Third Proportional to 124.81 and 186.31

Step by Step Solution

1. Step 1: Write the proportion equation
   124.81 : 186.31 = 186.31 : x
2. Step 2: Convert to fraction form
   124.81/186.31 = 186.31/x
3. Step 3: Cross multiply
   124.81x = 186.31 × 186.31
4. Step 4: Simplify right side
   124.81x = 34,712.35
5. Step 5: Solve for x
   x = 34,712.35/124.81
6. Step 6: Final answer
   x = 278.12