Finding the Third Proportional to 2,555,990 and 5,471,029

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,990 : 5,471,029 = 5,471,029 : x
2. Step 2: Convert to fraction form
   2,555,990/5,471,029 = 5,471,029/x
3. Step 3: Cross multiply
   2,555,990x = 5,471,029 × 5,471,029
4. Step 4: Simplify right side
   2,555,990x = 29,932,158,318,841
5. Step 5: Solve for x
   x = 29,932,158,318,841/2,555,990
6. Step 6: Final answer
   x = 11,710,592.89