Finding the Third Proportional to 805,760 and 1,257,680

Step by Step Solution

1. Step 1: Write the proportion equation
   805,760 : 1,257,680 = 1,257,680 : x
2. Step 2: Convert to fraction form
   805,760/1,257,680 = 1,257,680/x
3. Step 3: Cross multiply
   805,760x = 1,257,680 × 1,257,680
4. Step 4: Simplify right side
   805,760x = 1,581,758,982,400
5. Step 5: Solve for x
   x = 1,581,758,982,400/805,760
6. Step 6: Final answer
   x = 1,963,064.66