Finding the Third Proportional to 215,508 and 471,144

Step by Step Solution

1. Step 1: Write the proportion equation
   215,508 : 471,144 = 471,144 : x
2. Step 2: Convert to fraction form
   215,508/471,144 = 471,144/x
3. Step 3: Cross multiply
   215,508x = 471,144 × 471,144
4. Step 4: Simplify right side
   215,508x = 221,976,668,736
5. Step 5: Solve for x
   x = 221,976,668,736/215,508
6. Step 6: Final answer
   x = 1,030,015.91