Finding the Third Proportional to 217,816 and 469,008

Step by Step Solution

1. Step 1: Write the proportion equation
   217,816 : 469,008 = 469,008 : x
2. Step 2: Convert to fraction form
   217,816/469,008 = 469,008/x
3. Step 3: Cross multiply
   217,816x = 469,008 × 469,008
4. Step 4: Simplify right side
   217,816x = 219,968,504,064
5. Step 5: Solve for x
   x = 219,968,504,064/217,816
6. Step 6: Final answer
   x = 1,009,882.21