Finding the Third Proportional to 21,196.69 and 50,905.97

Step by Step Solution

1. Step 1: Write the proportion equation
   21,196.69 : 50,905.97 = 50,905.97 : x
2. Step 2: Convert to fraction form
   21,196.69/50,905.97 = 50,905.97/x
3. Step 3: Cross multiply
   21,196.69x = 50,905.97 × 50,905.97
4. Step 4: Simplify right side
   21,196.69x = 2,591,417,654.38
5. Step 5: Solve for x
   x = 2,591,417,654.38/21,196.69
6. Step 6: Final answer
   x = 122,255.78