Finding the Third Proportional to 2,645,107.31 and 3,957,408.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,107.31 : 3,957,408.56 = 3,957,408.56 : x
2. Step 2: Convert to fraction form
   2,645,107.31/3,957,408.56 = 3,957,408.56/x
3. Step 3: Cross multiply
   2,645,107.31x = 3,957,408.56 × 3,957,408.56
4. Step 4: Simplify right side
   2,645,107.31x = 15,661,082,530,548.32
5. Step 5: Solve for x
   x = 15,661,082,530,548.32/2,645,107.31
6. Step 6: Final answer
   x = 5,920,773.97