Finding the Third Proportional to 1,781,628 and 2,420,559

Step by Step Solution

1. Step 1: Write the proportion equation
   1,781,628 : 2,420,559 = 2,420,559 : x
2. Step 2: Convert to fraction form
   1,781,628/2,420,559 = 2,420,559/x
3. Step 3: Cross multiply
   1,781,628x = 2,420,559 × 2,420,559
4. Step 4: Simplify right side
   1,781,628x = 5,859,105,872,481
5. Step 5: Solve for x
   x = 5,859,105,872,481/1,781,628
6. Step 6: Final answer
   x = 3,288,624.71