Finding the Third Proportional to 90,086 and 140,116

Step by Step Solution

1. Step 1: Write the proportion equation
   90,086 : 140,116 = 140,116 : x
2. Step 2: Convert to fraction form
   90,086/140,116 = 140,116/x
3. Step 3: Cross multiply
   90,086x = 140,116 × 140,116
4. Step 4: Simplify right side
   90,086x = 19,632,493,456
5. Step 5: Solve for x
   x = 19,632,493,456/90,086
6. Step 6: Final answer
   x = 217,930.57