Finding the Third Proportional to 218,242 and 469,856

Step by Step Solution

1. Step 1: Write the proportion equation
   218,242 : 469,856 = 469,856 : x
2. Step 2: Convert to fraction form
   218,242/469,856 = 469,856/x
3. Step 3: Cross multiply
   218,242x = 469,856 × 469,856
4. Step 4: Simplify right side
   218,242x = 220,764,660,736
5. Step 5: Solve for x
   x = 220,764,660,736/218,242
6. Step 6: Final answer
   x = 1,011,559.01