Finding the Third Proportional to 2,027,720 and 3,138,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027,720 : 3,138,640 = 3,138,640 : x
2. Step 2: Convert to fraction form
   2,027,720/3,138,640 = 3,138,640/x
3. Step 3: Cross multiply
   2,027,720x = 3,138,640 × 3,138,640
4. Step 4: Simplify right side
   2,027,720x = 9,851,061,049,600
5. Step 5: Solve for x
   x = 9,851,061,049,600/2,027,720
6. Step 6: Final answer
   x = 4,858,195.93