Finding the Third Proportional to 218,736 and 471,612

Step by Step Solution

1. Step 1: Write the proportion equation
   218,736 : 471,612 = 471,612 : x
2. Step 2: Convert to fraction form
   218,736/471,612 = 471,612/x
3. Step 3: Cross multiply
   218,736x = 471,612 × 471,612
4. Step 4: Simplify right side
   218,736x = 222,417,878,544
5. Step 5: Solve for x
   x = 222,417,878,544/218,736
6. Step 6: Final answer
   x = 1,016,832.52