Finding the Third Proportional to 1,399,005 and 3,018,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,005 : 3,018,690 = 3,018,690 : x
2. Step 2: Convert to fraction form
   1,399,005/3,018,690 = 3,018,690/x
3. Step 3: Cross multiply
   1,399,005x = 3,018,690 × 3,018,690
4. Step 4: Simplify right side
   1,399,005x = 9,112,489,316,100
5. Step 5: Solve for x
   x = 9,112,489,316,100/1,399,005
6. Step 6: Final answer
   x = 6,513,550.21