Finding the Third Proportional to 2,563,988 and 5,471,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,563,988 : 5,471,216 = 5,471,216 : x
2. Step 2: Convert to fraction form
   2,563,988/5,471,216 = 5,471,216/x
3. Step 3: Cross multiply
   2,563,988x = 5,471,216 × 5,471,216
4. Step 4: Simplify right side
   2,563,988x = 29,934,204,518,656
5. Step 5: Solve for x
   x = 29,934,204,518,656/2,563,988
6. Step 6: Final answer
   x = 11,674,861.40