Finding the Third Proportional to 218,888 and 479,294

Step by Step Solution

1. Step 1: Write the proportion equation
   218,888 : 479,294 = 479,294 : x
2. Step 2: Convert to fraction form
   218,888/479,294 = 479,294/x
3. Step 3: Cross multiply
   218,888x = 479,294 × 479,294
4. Step 4: Simplify right side
   218,888x = 229,722,738,436
5. Step 5: Solve for x
   x = 229,722,738,436/218,888
6. Step 6: Final answer
   x = 1,049,499.01