Finding the Third Proportional to 2,263,842 and 3,218,643

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263,842 : 3,218,643 = 3,218,643 : x
2. Step 2: Convert to fraction form
   2,263,842/3,218,643 = 3,218,643/x
3. Step 3: Cross multiply
   2,263,842x = 3,218,643 × 3,218,643
4. Step 4: Simplify right side
   2,263,842x = 10,359,662,761,449
5. Step 5: Solve for x
   x = 10,359,662,761,449/2,263,842
6. Step 6: Final answer
   x = 4,576,142.13