Finding the Third Proportional to 1,709,385 and 3,647,585

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709,385 : 3,647,585 = 3,647,585 : x
2. Step 2: Convert to fraction form
   1,709,385/3,647,585 = 3,647,585/x
3. Step 3: Cross multiply
   1,709,385x = 3,647,585 × 3,647,585
4. Step 4: Simplify right side
   1,709,385x = 13,304,876,332,225
5. Step 5: Solve for x
   x = 13,304,876,332,225/1,709,385
6. Step 6: Final answer
   x = 7,783,428.74