Finding the Third Proportional to 219,678 and 475,988

Step by Step Solution

1. Step 1: Write the proportion equation
   219,678 : 475,988 = 475,988 : x
2. Step 2: Convert to fraction form
   219,678/475,988 = 475,988/x
3. Step 3: Cross multiply
   219,678x = 475,988 × 475,988
4. Step 4: Simplify right side
   219,678x = 226,564,576,144
5. Step 5: Solve for x
   x = 226,564,576,144/219,678
6. Step 6: Final answer
   x = 1,031,348.50