Finding the Third Proportional to 90,162 and 140,157

Step by Step Solution

1. Step 1: Write the proportion equation
   90,162 : 140,157 = 140,157 : x
2. Step 2: Convert to fraction form
   90,162/140,157 = 140,157/x
3. Step 3: Cross multiply
   90,162x = 140,157 × 140,157
4. Step 4: Simplify right side
   90,162x = 19,643,984,649
5. Step 5: Solve for x
   x = 19,643,984,649/90,162
6. Step 6: Final answer
   x = 217,874.32