Finding the Third Proportional to 1,691,628 and 3,647,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,628 : 3,647,328 = 3,647,328 : x
2. Step 2: Convert to fraction form
   1,691,628/3,647,328 = 3,647,328/x
3. Step 3: Cross multiply
   1,691,628x = 3,647,328 × 3,647,328
4. Step 4: Simplify right side
   1,691,628x = 13,303,001,539,584
5. Step 5: Solve for x
   x = 13,303,001,539,584/1,691,628
6. Step 6: Final answer
   x = 7,864,023.02