Finding the Third Proportional to 1,682,220 and 3,648,386

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682,220 : 3,648,386 = 3,648,386 : x
2. Step 2: Convert to fraction form
   1,682,220/3,648,386 = 3,648,386/x
3. Step 3: Cross multiply
   1,682,220x = 3,648,386 × 3,648,386
4. Step 4: Simplify right side
   1,682,220x = 13,310,720,404,996
5. Step 5: Solve for x
   x = 13,310,720,404,996/1,682,220
6. Step 6: Final answer
   x = 7,912,591.94