Finding the Third Proportional to 2,458,478 and 5,404,807

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458,478 : 5,404,807 = 5,404,807 : x
2. Step 2: Convert to fraction form
   2,458,478/5,404,807 = 5,404,807/x
3. Step 3: Cross multiply
   2,458,478x = 5,404,807 × 5,404,807
4. Step 4: Simplify right side
   2,458,478x = 29,211,938,707,249
5. Step 5: Solve for x
   x = 29,211,938,707,249/2,458,478
6. Step 6: Final answer
   x = 11,882,123.29