Finding the Third Proportional to 858,624 and 1,359,282

Step by Step Solution

1. Step 1: Write the proportion equation
   858,624 : 1,359,282 = 1,359,282 : x
2. Step 2: Convert to fraction form
   858,624/1,359,282 = 1,359,282/x
3. Step 3: Cross multiply
   858,624x = 1,359,282 × 1,359,282
4. Step 4: Simplify right side
   858,624x = 1,847,647,555,524
5. Step 5: Solve for x
   x = 1,847,647,555,524/858,624
6. Step 6: Final answer
   x = 2,151,870.38