Finding the Third Proportional to 2,218,536 and 3,170,339

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218,536 : 3,170,339 = 3,170,339 : x
2. Step 2: Convert to fraction form
   2,218,536/3,170,339 = 3,170,339/x
3. Step 3: Cross multiply
   2,218,536x = 3,170,339 × 3,170,339
4. Step 4: Simplify right side
   2,218,536x = 10,051,049,374,921
5. Step 5: Solve for x
   x = 10,051,049,374,921/2,218,536
6. Step 6: Final answer
   x = 4,530,487.39