Finding the Third Proportional to 126,696 and 200,610

Step by Step Solution

1. Step 1: Write the proportion equation
   126,696 : 200,610 = 200,610 : x
2. Step 2: Convert to fraction form
   126,696/200,610 = 200,610/x
3. Step 3: Cross multiply
   126,696x = 200,610 × 200,610
4. Step 4: Simplify right side
   126,696x = 40,244,372,100
5. Step 5: Solve for x
   x = 40,244,372,100/126,696
6. Step 6: Final answer
   x = 317,645.17