Finding the Third Proportional to 1,648,688 and 3,587,698

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,688 : 3,587,698 = 3,587,698 : x
2. Step 2: Convert to fraction form
   1,648,688/3,587,698 = 3,587,698/x
3. Step 3: Cross multiply
   1,648,688x = 3,587,698 × 3,587,698
4. Step 4: Simplify right side
   1,648,688x = 12,871,576,939,204
5. Step 5: Solve for x
   x = 12,871,576,939,204/1,648,688
6. Step 6: Final answer
   x = 7,807,163.60