Finding the Third Proportional to 322,150.50 and 685,773

Step by Step Solution

1. Step 1: Write the proportion equation
   322,150.50 : 685,773 = 685,773 : x
2. Step 2: Convert to fraction form
   322,150.50/685,773 = 685,773/x
3. Step 3: Cross multiply
   322,150.50x = 685,773 × 685,773
4. Step 4: Simplify right side
   322,150.50x = 470,284,607,529
5. Step 5: Solve for x
   x = 470,284,607,529/322,150.50
6. Step 6: Final answer
   x = 1,459,828.89