Finding the Third Proportional to 1,648,688 and 3,587,700

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,688 : 3,587,700 = 3,587,700 : x
2. Step 2: Convert to fraction form
   1,648,688/3,587,700 = 3,587,700/x
3. Step 3: Cross multiply
   1,648,688x = 3,587,700 × 3,587,700
4. Step 4: Simplify right side
   1,648,688x = 12,871,591,290,000
5. Step 5: Solve for x
   x = 12,871,591,290,000/1,648,688
6. Step 6: Final answer
   x = 7,807,172.30