Finding the Third Proportional to 560,116 and 850,530

Step by Step Solution

1. Step 1: Write the proportion equation
   560,116 : 850,530 = 850,530 : x
2. Step 2: Convert to fraction form
   560,116/850,530 = 850,530/x
3. Step 3: Cross multiply
   560,116x = 850,530 × 850,530
4. Step 4: Simplify right side
   560,116x = 723,401,280,900
5. Step 5: Solve for x
   x = 723,401,280,900/560,116
6. Step 6: Final answer
   x = 1,291,520.47