Finding the Third Proportional to 1,787,774 and 3,909,766

Step by Step Solution

1. Step 1: Write the proportion equation
   1,787,774 : 3,909,766 = 3,909,766 : x
2. Step 2: Convert to fraction form
   1,787,774/3,909,766 = 3,909,766/x
3. Step 3: Cross multiply
   1,787,774x = 3,909,766 × 3,909,766
4. Step 4: Simplify right side
   1,787,774x = 15,286,270,174,756
5. Step 5: Solve for x
   x = 15,286,270,174,756/1,787,774
6. Step 6: Final answer
   x = 8,550,448.87