Finding the Third Proportional to 88,279 and 126,109

Step by Step Solution

1. Step 1: Write the proportion equation
   88,279 : 126,109 = 126,109 : x
2. Step 2: Convert to fraction form
   88,279/126,109 = 126,109/x
3. Step 3: Cross multiply
   88,279x = 126,109 × 126,109
4. Step 4: Simplify right side
   88,279x = 15,903,479,881
5. Step 5: Solve for x
   x = 15,903,479,881/88,279
6. Step 6: Final answer
   x = 180,150.20