Finding the Third Proportional to 141,016 and 218,456

Step by Step Solution

1. Step 1: Write the proportion equation
   141,016 : 218,456 = 218,456 : x
2. Step 2: Convert to fraction form
   141,016/218,456 = 218,456/x
3. Step 3: Cross multiply
   141,016x = 218,456 × 218,456
4. Step 4: Simplify right side
   141,016x = 47,723,023,936
5. Step 5: Solve for x
   x = 47,723,023,936/141,016
6. Step 6: Final answer
   x = 338,422.76