Finding the Third Proportional to 2,378,990 and 3,569,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378,990 : 3,569,216 = 3,569,216 : x
2. Step 2: Convert to fraction form
   2,378,990/3,569,216 = 3,569,216/x
3. Step 3: Cross multiply
   2,378,990x = 3,569,216 × 3,569,216
4. Step 4: Simplify right side
   2,378,990x = 12,739,302,854,656
5. Step 5: Solve for x
   x = 12,739,302,854,656/2,378,990
6. Step 6: Final answer
   x = 5,354,920.72