Finding the Third Proportional to 809,526 and 1,207,728

Step by Step Solution

1. Step 1: Write the proportion equation
   809,526 : 1,207,728 = 1,207,728 : x
2. Step 2: Convert to fraction form
   809,526/1,207,728 = 1,207,728/x
3. Step 3: Cross multiply
   809,526x = 1,207,728 × 1,207,728
4. Step 4: Simplify right side
   809,526x = 1,458,606,921,984
5. Step 5: Solve for x
   x = 1,458,606,921,984/809,526
6. Step 6: Final answer
   x = 1,801,803.68