Finding the Third Proportional to 2,218,538 and 3,170,342

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,538 : 3,170,342 = 3,170,342 : x
2. Step 2: Convert to fraction form
   2,218,538/3,170,342 = 3,170,342/x
3. Step 3: Cross multiply
   2,218,538x = 3,170,342 × 3,170,342
4. Step 4: Simplify right side
   2,218,538x = 10,051,068,396,964
5. Step 5: Solve for x
   x = 10,051,068,396,964/2,218,538
6. Step 6: Final answer
   x = 4,530,491.88