Finding the Third Proportional to 859,320 and 1,288,384

Step by Step Solution

1. Step 1: Write the proportion equation
   859,320 : 1,288,384 = 1,288,384 : x
2. Step 2: Convert to fraction form
   859,320/1,288,384 = 1,288,384/x
3. Step 3: Cross multiply
   859,320x = 1,288,384 × 1,288,384
4. Step 4: Simplify right side
   859,320x = 1,659,933,331,456
5. Step 5: Solve for x
   x = 1,659,933,331,456/859,320
6. Step 6: Final answer
   x = 1,931,682.41