Finding the Third Proportional to 785,870 and 1,718,856

Step by Step Solution

1. Step 1: Write the proportion equation
   785,870 : 1,718,856 = 1,718,856 : x
2. Step 2: Convert to fraction form
   785,870/1,718,856 = 1,718,856/x
3. Step 3: Cross multiply
   785,870x = 1,718,856 × 1,718,856
4. Step 4: Simplify right side
   785,870x = 2,954,465,948,736
5. Step 5: Solve for x
   x = 2,954,465,948,736/785,870
6. Step 6: Final answer
   x = 3,759,484.33