Finding the Third Proportional to 90,422 and 133,790

Step by Step Solution

1. Step 1: Write the proportion equation
   90,422 : 133,790 = 133,790 : x
2. Step 2: Convert to fraction form
   90,422/133,790 = 133,790/x
3. Step 3: Cross multiply
   90,422x = 133,790 × 133,790
4. Step 4: Simplify right side
   90,422x = 17,899,764,100
5. Step 5: Solve for x
   x = 17,899,764,100/90,422
6. Step 6: Final answer
   x = 197,958.06