Finding the Third Proportional to 345,790 and 807,662

Step by Step Solution

1. Step 1: Write the proportion equation
   345,790 : 807,662 = 807,662 : x
2. Step 2: Convert to fraction form
   345,790/807,662 = 807,662/x
3. Step 3: Cross multiply
   345,790x = 807,662 × 807,662
4. Step 4: Simplify right side
   345,790x = 652,317,906,244
5. Step 5: Solve for x
   x = 652,317,906,244/345,790
6. Step 6: Final answer
   x = 1,886,456.83