Finding the Third Proportional to 2,478,640 and 5,255,036

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478,640 : 5,255,036 = 5,255,036 : x
2. Step 2: Convert to fraction form
   2,478,640/5,255,036 = 5,255,036/x
3. Step 3: Cross multiply
   2,478,640x = 5,255,036 × 5,255,036
4. Step 4: Simplify right side
   2,478,640x = 27,615,403,361,296
5. Step 5: Solve for x
   x = 27,615,403,361,296/2,478,640
6. Step 6: Final answer
   x = 11,141,353.07