Finding the Third Proportional to 124.31 and 186.47

Step by Step Solution

1. Step 1: Write the proportion equation
   124.31 : 186.47 = 186.47 : x
2. Step 2: Convert to fraction form
   124.31/186.47 = 186.47/x
3. Step 3: Cross multiply
   124.31x = 186.47 × 186.47
4. Step 4: Simplify right side
   124.31x = 34,770.59
5. Step 5: Solve for x
   x = 34,770.59/124.31
6. Step 6: Final answer
   x = 279.70