Finding the Third Proportional to 519,563 and 812,150

Step by Step Solution

1. Step 1: Write the proportion equation
   519,563 : 812,150 = 812,150 : x
2. Step 2: Convert to fraction form
   519,563/812,150 = 812,150/x
3. Step 3: Cross multiply
   519,563x = 812,150 × 812,150
4. Step 4: Simplify right side
   519,563x = 659,587,622,500
5. Step 5: Solve for x
   x = 659,587,622,500/519,563
6. Step 6: Final answer
   x = 1,269,504.61