Finding the Third Proportional to 91,453 and 137,422

Step by Step Solution

1. Step 1: Write the proportion equation
   91,453 : 137,422 = 137,422 : x
2. Step 2: Convert to fraction form
   91,453/137,422 = 137,422/x
3. Step 3: Cross multiply
   91,453x = 137,422 × 137,422
4. Step 4: Simplify right side
   91,453x = 18,884,806,084
5. Step 5: Solve for x
   x = 18,884,806,084/91,453
6. Step 6: Final answer
   x = 206,497.39