Finding the Third Proportional to 2,528,640 and 5,485,824

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528,640 : 5,485,824 = 5,485,824 : x
2. Step 2: Convert to fraction form
   2,528,640/5,485,824 = 5,485,824/x
3. Step 3: Cross multiply
   2,528,640x = 5,485,824 × 5,485,824
4. Step 4: Simplify right side
   2,528,640x = 30,094,264,958,976
5. Step 5: Solve for x
   x = 30,094,264,958,976/2,528,640
6. Step 6: Final answer
   x = 11,901,363.96