Finding the Third Proportional to 218,929.50 and 472,059

Step by Step Solution

1. Step 1: Write the proportion equation
   218,929.50 : 472,059 = 472,059 : x
2. Step 2: Convert to fraction form
   218,929.50/472,059 = 472,059/x
3. Step 3: Cross multiply
   218,929.50x = 472,059 × 472,059
4. Step 4: Simplify right side
   218,929.50x = 222,839,699,481
5. Step 5: Solve for x
   x = 222,839,699,481/218,929.50
6. Step 6: Final answer
   x = 1,017,860.54