Finding the Third Proportional to 1,288,807 and 1,893,749

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,807 : 1,893,749 = 1,893,749 : x
2. Step 2: Convert to fraction form
   1,288,807/1,893,749 = 1,893,749/x
3. Step 3: Cross multiply
   1,288,807x = 1,893,749 × 1,893,749
4. Step 4: Simplify right side
   1,288,807x = 3,586,285,275,001
5. Step 5: Solve for x
   x = 3,586,285,275,001/1,288,807
6. Step 6: Final answer
   x = 2,782,639.51