Finding the Third Proportional to 1,691,622 and 3,647,318

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,622 : 3,647,318 = 3,647,318 : x
2. Step 2: Convert to fraction form
   1,691,622/3,647,318 = 3,647,318/x
3. Step 3: Cross multiply
   1,691,622x = 3,647,318 × 3,647,318
4. Step 4: Simplify right side
   1,691,622x = 13,302,928,593,124
5. Step 5: Solve for x
   x = 13,302,928,593,124/1,691,622
6. Step 6: Final answer
   x = 7,864,007.79