Finding the Third Proportional to 218,832 and 471,142

Step by Step Solution

1. Step 1: Write the proportion equation
   218,832 : 471,142 = 471,142 : x
2. Step 2: Convert to fraction form
   218,832/471,142 = 471,142/x
3. Step 3: Cross multiply
   218,832x = 471,142 × 471,142
4. Step 4: Simplify right side
   218,832x = 221,974,784,164
5. Step 5: Solve for x
   x = 221,974,784,164/218,832
6. Step 6: Final answer
   x = 1,014,361.63