Finding the Third Proportional to 815,190 and 1,787,682

Step by Step Solution

1. Step 1: Write the proportion equation
   815,190 : 1,787,682 = 1,787,682 : x
2. Step 2: Convert to fraction form
   815,190/1,787,682 = 1,787,682/x
3. Step 3: Cross multiply
   815,190x = 1,787,682 × 1,787,682
4. Step 4: Simplify right side
   815,190x = 3,195,806,933,124
5. Step 5: Solve for x
   x = 3,195,806,933,124/815,190
6. Step 6: Final answer
   x = 3,920,321.56