Finding the Third Proportional to 1,389,800 and 3,018,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,800 : 3,018,712 = 3,018,712 : x
2. Step 2: Convert to fraction form
   1,389,800/3,018,712 = 3,018,712/x
3. Step 3: Cross multiply
   1,389,800x = 3,018,712 × 3,018,712
4. Step 4: Simplify right side
   1,389,800x = 9,112,622,138,944
5. Step 5: Solve for x
   x = 9,112,622,138,944/1,389,800
6. Step 6: Final answer
   x = 6,556,786.69