Finding the Third Proportional to 1,642,909 and 3,528,683

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642,909 : 3,528,683 = 3,528,683 : x
2. Step 2: Convert to fraction form
   1,642,909/3,528,683 = 3,528,683/x
3. Step 3: Cross multiply
   1,642,909x = 3,528,683 × 3,528,683
4. Step 4: Simplify right side
   1,642,909x = 12,451,603,714,489
5. Step 5: Solve for x
   x = 12,451,603,714,489/1,642,909
6. Step 6: Final answer
   x = 7,578,997.81