Finding the Third Proportional to 1,247,939 and 1,783,329

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,939 : 1,783,329 = 1,783,329 : x
2. Step 2: Convert to fraction form
   1,247,939/1,783,329 = 1,783,329/x
3. Step 3: Cross multiply
   1,247,939x = 1,783,329 × 1,783,329
4. Step 4: Simplify right side
   1,247,939x = 3,180,262,322,241
5. Step 5: Solve for x
   x = 3,180,262,322,241/1,247,939
6. Step 6: Final answer
   x = 2,548,411.68