Finding the Third Proportional to 1,139,040 and 2,505,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,040 : 2,505,456 = 2,505,456 : x
2. Step 2: Convert to fraction form
   1,139,040/2,505,456 = 2,505,456/x
3. Step 3: Cross multiply
   1,139,040x = 2,505,456 × 2,505,456
4. Step 4: Simplify right side
   1,139,040x = 6,277,309,767,936
5. Step 5: Solve for x
   x = 6,277,309,767,936/1,139,040
6. Step 6: Final answer
   x = 5,511,052.96