Finding the Third Proportional to 1,631,720 and 3,487,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631,720 : 3,487,648 = 3,487,648 : x
2. Step 2: Convert to fraction form
   1,631,720/3,487,648 = 3,487,648/x
3. Step 3: Cross multiply
   1,631,720x = 3,487,648 × 3,487,648
4. Step 4: Simplify right side
   1,631,720x = 12,163,688,571,904
5. Step 5: Solve for x
   x = 12,163,688,571,904/1,631,720
6. Step 6: Final answer
   x = 7,454,519.51