Finding the Third Proportional to 2,543,616 and 5,381,694

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543,616 : 5,381,694 = 5,381,694 : x
2. Step 2: Convert to fraction form
   2,543,616/5,381,694 = 5,381,694/x
3. Step 3: Cross multiply
   2,543,616x = 5,381,694 × 5,381,694
4. Step 4: Simplify right side
   2,543,616x = 28,962,630,309,636
5. Step 5: Solve for x
   x = 28,962,630,309,636/2,543,616
6. Step 6: Final answer
   x = 11,386,400.43