Finding the Third Proportional to 862,378 and 1,814,123

Step by Step Solution

1. Step 1: Write the proportion equation
   862,378 : 1,814,123 = 1,814,123 : x
2. Step 2: Convert to fraction form
   862,378/1,814,123 = 1,814,123/x
3. Step 3: Cross multiply
   862,378x = 1,814,123 × 1,814,123
4. Step 4: Simplify right side
   862,378x = 3,291,042,259,129
5. Step 5: Solve for x
   x = 3,291,042,259,129/862,378
6. Step 6: Final answer
   x = 3,816,240.97