Finding the Third Proportional to 90,211.69 and 126,121.31

Step by Step Solution

1. Step 1: Write the proportion equation
   90,211.69 : 126,121.31 = 126,121.31 : x
2. Step 2: Convert to fraction form
   90,211.69/126,121.31 = 126,121.31/x
3. Step 3: Cross multiply
   90,211.69x = 126,121.31 × 126,121.31
4. Step 4: Simplify right side
   90,211.69x = 15,906,585,466.72
5. Step 5: Solve for x
   x = 15,906,585,466.72/90,211.69
6. Step 6: Final answer
   x = 176,325.11