Finding the Third Proportional to 812,039 and 1,786,078

Step by Step Solution

1. Step 1: Write the proportion equation
   812,039 : 1,786,078 = 1,786,078 : x
2. Step 2: Convert to fraction form
   812,039/1,786,078 = 1,786,078/x
3. Step 3: Cross multiply
   812,039x = 1,786,078 × 1,786,078
4. Step 4: Simplify right side
   812,039x = 3,190,074,622,084
5. Step 5: Solve for x
   x = 3,190,074,622,084/812,039
6. Step 6: Final answer
   x = 3,928,474.64