Finding the Third Proportional to 571,105.50 and 856,770

Step by Step Solution

1. Step 1: Write the proportion equation
   571,105.50 : 856,770 = 856,770 : x
2. Step 2: Convert to fraction form
   571,105.50/856,770 = 856,770/x
3. Step 3: Cross multiply
   571,105.50x = 856,770 × 856,770
4. Step 4: Simplify right side
   571,105.50x = 734,054,832,900
5. Step 5: Solve for x
   x = 734,054,832,900/571,105.50
6. Step 6: Final answer
   x = 1,285,322.65