Finding the Third Proportional to 126,784 and 196,212

Step by Step Solution

1. Step 1: Write the proportion equation
   126,784 : 196,212 = 196,212 : x
2. Step 2: Convert to fraction form
   126,784/196,212 = 196,212/x
3. Step 3: Cross multiply
   126,784x = 196,212 × 196,212
4. Step 4: Simplify right side
   126,784x = 38,499,148,944
5. Step 5: Solve for x
   x = 38,499,148,944/126,784
6. Step 6: Final answer
   x = 303,659.37