Finding the Third Proportional to 132,979.50 and 199,469

Step by Step Solution

1. Step 1: Write the proportion equation
   132,979.50 : 199,469 = 199,469 : x
2. Step 2: Convert to fraction form
   132,979.50/199,469 = 199,469/x
3. Step 3: Cross multiply
   132,979.50x = 199,469 × 199,469
4. Step 4: Simplify right side
   132,979.50x = 39,787,881,961
5. Step 5: Solve for x
   x = 39,787,881,961/132,979.50
6. Step 6: Final answer
   x = 299,203.13