Finding the Third Proportional to 404,765 and 870,760

Step by Step Solution

1. Step 1: Write the proportion equation
   404,765 : 870,760 = 870,760 : x
2. Step 2: Convert to fraction form
   404,765/870,760 = 870,760/x
3. Step 3: Cross multiply
   404,765x = 870,760 × 870,760
4. Step 4: Simplify right side
   404,765x = 758,222,977,600
5. Step 5: Solve for x
   x = 758,222,977,600/404,765
6. Step 6: Final answer
   x = 1,873,242.44