Finding the Third Proportional to 53,988 and 126,099

Step by Step Solution

1. Step 1: Write the proportion equation
   53,988 : 126,099 = 126,099 : x
2. Step 2: Convert to fraction form
   53,988/126,099 = 126,099/x
3. Step 3: Cross multiply
   53,988x = 126,099 × 126,099
4. Step 4: Simplify right side
   53,988x = 15,900,957,801
5. Step 5: Solve for x
   x = 15,900,957,801/53,988
6. Step 6: Final answer
   x = 294,527.63