Finding the Third Proportional to 1,728,690 and 2,616,895

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728,690 : 2,616,895 = 2,616,895 : x
2. Step 2: Convert to fraction form
   1,728,690/2,616,895 = 2,616,895/x
3. Step 3: Cross multiply
   1,728,690x = 2,616,895 × 2,616,895
4. Step 4: Simplify right side
   1,728,690x = 6,848,139,441,025
5. Step 5: Solve for x
   x = 6,848,139,441,025/1,728,690
6. Step 6: Final answer
   x = 3,961,461.82