Finding the Third Proportional to 90,166 and 141,439

Step by Step Solution

1. Step 1: Write the proportion equation
   90,166 : 141,439 = 141,439 : x
2. Step 2: Convert to fraction form
   90,166/141,439 = 141,439/x
3. Step 3: Cross multiply
   90,166x = 141,439 × 141,439
4. Step 4: Simplify right side
   90,166x = 20,004,990,721
5. Step 5: Solve for x
   x = 20,004,990,721/90,166
6. Step 6: Final answer
   x = 221,868.45