Finding the Third Proportional to 565,166.50 and 853,510

Step by Step Solution

1. Step 1: Write the proportion equation
   565,166.50 : 853,510 = 853,510 : x
2. Step 2: Convert to fraction form
   565,166.50/853,510 = 853,510/x
3. Step 3: Cross multiply
   565,166.50x = 853,510 × 853,510
4. Step 4: Simplify right side
   565,166.50x = 728,479,320,100
5. Step 5: Solve for x
   x = 728,479,320,100/565,166.50
6. Step 6: Final answer
   x = 1,288,964.08