Finding the Third Proportional to 218,904 and 470,370

Step by Step Solution

1. Step 1: Write the proportion equation
   218,904 : 470,370 = 470,370 : x
2. Step 2: Convert to fraction form
   218,904/470,370 = 470,370/x
3. Step 3: Cross multiply
   218,904x = 470,370 × 470,370
4. Step 4: Simplify right side
   218,904x = 221,247,936,900
5. Step 5: Solve for x
   x = 221,247,936,900/218,904
6. Step 6: Final answer
   x = 1,010,707.60