Finding the Third Proportional to 2,555,436.09 and 5,465,439.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,436.09 : 5,465,439.56 = 5,465,439.56 : x
2. Step 2: Convert to fraction form
   2,555,436.09/5,465,439.56 = 5,465,439.56/x
3. Step 3: Cross multiply
   2,555,436.09x = 5,465,439.56 × 5,465,439.56
4. Step 4: Simplify right side
   2,555,436.09x = 29,871,029,611,340.19
5. Step 5: Solve for x
   x = 29,871,029,611,340.19/2,555,436.09
6. Step 6: Final answer
   x = 11,689,210.18