Finding the Third Proportional to 862,389 and 1,814,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   862,389 : 1,814,149.50 = 1,814,149.50 : x
2. Step 2: Convert to fraction form
   862,389/1,814,149.50 = 1,814,149.50/x
3. Step 3: Cross multiply
   862,389x = 1,814,149.50 × 1,814,149.50
4. Step 4: Simplify right side
   862,389x = 3,291,138,408,350.25
5. Step 5: Solve for x
   x = 3,291,138,408,350.25/862,389
6. Step 6: Final answer
   x = 3,816,303.79