Finding the Third Proportional to 217,012 and 470,110

Step by Step Solution

1. Step 1: Write the proportion equation
   217,012 : 470,110 = 470,110 : x
2. Step 2: Convert to fraction form
   217,012/470,110 = 470,110/x
3. Step 3: Cross multiply
   217,012x = 470,110 × 470,110
4. Step 4: Simplify right side
   217,012x = 221,003,412,100
5. Step 5: Solve for x
   x = 221,003,412,100/217,012
6. Step 6: Final answer
   x = 1,018,392.59