Finding the Third Proportional to 1,539,615 and 2,217,747

Step by Step Solution

1. Step 1: Write the proportion equation
   1,539,615 : 2,217,747 = 2,217,747 : x
2. Step 2: Convert to fraction form
   1,539,615/2,217,747 = 2,217,747/x
3. Step 3: Cross multiply
   1,539,615x = 2,217,747 × 2,217,747
4. Step 4: Simplify right side
   1,539,615x = 4,918,401,756,009
5. Step 5: Solve for x
   x = 4,918,401,756,009/1,539,615
6. Step 6: Final answer
   x = 3,194,566.02