Finding the Third Proportional to 859,209 and 1,262,506

Step by Step Solution

1. Step 1: Write the proportion equation
   859,209 : 1,262,506 = 1,262,506 : x
2. Step 2: Convert to fraction form
   859,209/1,262,506 = 1,262,506/x
3. Step 3: Cross multiply
   859,209x = 1,262,506 × 1,262,506
4. Step 4: Simplify right side
   859,209x = 1,593,921,400,036
5. Step 5: Solve for x
   x = 1,593,921,400,036/859,209
6. Step 6: Final answer
   x = 1,855,103.24