Finding the Third Proportional to 91,191 and 136,422

Step by Step Solution

1. Step 1: Write the proportion equation
   91,191 : 136,422 = 136,422 : x
2. Step 2: Convert to fraction form
   91,191/136,422 = 136,422/x
3. Step 3: Cross multiply
   91,191x = 136,422 × 136,422
4. Step 4: Simplify right side
   91,191x = 18,610,962,084
5. Step 5: Solve for x
   x = 18,610,962,084/91,191
6. Step 6: Final answer
   x = 204,087.71