Finding the Third Proportional to 1,491,918 and 3,219,708

Step by Step Solution

1. Step 1: Write the proportion equation
   1,491,918 : 3,219,708 = 3,219,708 : x
2. Step 2: Convert to fraction form
   1,491,918/3,219,708 = 3,219,708/x
3. Step 3: Cross multiply
   1,491,918x = 3,219,708 × 3,219,708
4. Step 4: Simplify right side
   1,491,918x = 10,366,519,605,264
5. Step 5: Solve for x
   x = 10,366,519,605,264/1,491,918
6. Step 6: Final answer
   x = 6,948,451.33