Finding the Third Proportional to 571,446 and 854,365.50

Step by Step Solution

1. Step 1: Write the proportion equation
   571,446 : 854,365.50 = 854,365.50 : x
2. Step 2: Convert to fraction form
   571,446/854,365.50 = 854,365.50/x
3. Step 3: Cross multiply
   571,446x = 854,365.50 × 854,365.50
4. Step 4: Simplify right side
   571,446x = 729,940,407,590.25
5. Step 5: Solve for x
   x = 729,940,407,590.25/571,446
6. Step 6: Final answer
   x = 1,277,356.75