Finding the Third Proportional to 404,707,280 and 870,795,872

Step by Step Solution

1. Step 1: Write the proportion equation
   404,707,280 : 870,795,872 = 870,795,872 : x
2. Step 2: Convert to fraction form
   404,707,280/870,795,872 = 870,795,872/x
3. Step 3: Cross multiply
   404,707,280x = 870,795,872 × 870,795,872
4. Step 4: Simplify right side
   404,707,280x = 758,285,450,692,240,384
5. Step 5: Solve for x
   x = 758,285,450,692,240,384/404,707,280
6. Step 6: Final answer
   x = 1,873,663,974.35