Finding the Third Proportional to 1,273,678 and 1,730,689

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273,678 : 1,730,689 = 1,730,689 : x
2. Step 2: Convert to fraction form
   1,273,678/1,730,689 = 1,730,689/x
3. Step 3: Cross multiply
   1,273,678x = 1,730,689 × 1,730,689
4. Step 4: Simplify right side
   1,273,678x = 2,995,284,414,721
5. Step 5: Solve for x
   x = 2,995,284,414,721/1,273,678
6. Step 6: Final answer
   x = 2,351,681.05