Finding the Third Proportional to 218,328 and 333,322

Step by Step Solution

1. Step 1: Write the proportion equation
   218,328 : 333,322 = 333,322 : x
2. Step 2: Convert to fraction form
   218,328/333,322 = 333,322/x
3. Step 3: Cross multiply
   218,328x = 333,322 × 333,322
4. Step 4: Simplify right side
   218,328x = 111,103,555,684
5. Step 5: Solve for x
   x = 111,103,555,684/218,328
6. Step 6: Final answer
   x = 508,883.68