Finding the Third Proportional to 219,504 and 478,892

Step by Step Solution

1. Step 1: Write the proportion equation
   219,504 : 478,892 = 478,892 : x
2. Step 2: Convert to fraction form
   219,504/478,892 = 478,892/x
3. Step 3: Cross multiply
   219,504x = 478,892 × 478,892
4. Step 4: Simplify right side
   219,504x = 229,337,547,664
5. Step 5: Solve for x
   x = 229,337,547,664/219,504
6. Step 6: Final answer
   x = 1,044,798.95