Finding the Third Proportional to 126,810 and 196,242

Step by Step Solution

1. Step 1: Write the proportion equation
   126,810 : 196,242 = 196,242 : x
2. Step 2: Convert to fraction form
   126,810/196,242 = 196,242/x
3. Step 3: Cross multiply
   126,810x = 196,242 × 196,242
4. Step 4: Simplify right side
   126,810x = 38,510,922,564
5. Step 5: Solve for x
   x = 38,510,922,564/126,810
6. Step 6: Final answer
   x = 303,689.95