Finding the Third Proportional to 90,086 and 140,119

Step by Step Solution

1. Step 1: Write the proportion equation
   90,086 : 140,119 = 140,119 : x
2. Step 2: Convert to fraction form
   90,086/140,119 = 140,119/x
3. Step 3: Cross multiply
   90,086x = 140,119 × 140,119
4. Step 4: Simplify right side
   90,086x = 19,633,334,161
5. Step 5: Solve for x
   x = 19,633,334,161/90,086
6. Step 6: Final answer
   x = 217,939.90