Finding the Third Proportional to 1,728,540 and 2,616,660

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728,540 : 2,616,660 = 2,616,660 : x
2. Step 2: Convert to fraction form
   1,728,540/2,616,660 = 2,616,660/x
3. Step 3: Cross multiply
   1,728,540x = 2,616,660 × 2,616,660
4. Step 4: Simplify right side
   1,728,540x = 6,846,909,555,600
5. Step 5: Solve for x
   x = 6,846,909,555,600/1,728,540
6. Step 6: Final answer
   x = 3,961,094.08