Finding the Third Proportional to 215,508 and 470,176

Step by Step Solution

1. Step 1: Write the proportion equation
   215,508 : 470,176 = 470,176 : x
2. Step 2: Convert to fraction form
   215,508/470,176 = 470,176/x
3. Step 3: Cross multiply
   215,508x = 470,176 × 470,176
4. Step 4: Simplify right side
   215,508x = 221,065,470,976
5. Step 5: Solve for x
   x = 221,065,470,976/215,508
6. Step 6: Final answer
   x = 1,025,787.77