Finding the Third Proportional to 1,709,345 and 3,647,479

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709,345 : 3,647,479 = 3,647,479 : x
2. Step 2: Convert to fraction form
   1,709,345/3,647,479 = 3,647,479/x
3. Step 3: Cross multiply
   1,709,345x = 3,647,479 × 3,647,479
4. Step 4: Simplify right side
   1,709,345x = 13,304,103,055,441
5. Step 5: Solve for x
   x = 13,304,103,055,441/1,709,345
6. Step 6: Final answer
   x = 7,783,158.49