Finding the Third Proportional to 90,158 and 140,150

Step by Step Solution

1. Step 1: Write the proportion equation
   90,158 : 140,150 = 140,150 : x
2. Step 2: Convert to fraction form
   90,158/140,150 = 140,150/x
3. Step 3: Cross multiply
   90,158x = 140,150 × 140,150
4. Step 4: Simplify right side
   90,158x = 19,642,022,500
5. Step 5: Solve for x
   x = 19,642,022,500/90,158
6. Step 6: Final answer
   x = 217,862.23