Finding the Third Proportional to 217,994 and 470,388

Step by Step Solution

1. Step 1: Write the proportion equation
   217,994 : 470,388 = 470,388 : x
2. Step 2: Convert to fraction form
   217,994/470,388 = 470,388/x
3. Step 3: Cross multiply
   217,994x = 470,388 × 470,388
4. Step 4: Simplify right side
   217,994x = 221,264,870,544
5. Step 5: Solve for x
   x = 221,264,870,544/217,994
6. Step 6: Final answer
   x = 1,015,004.41