Finding the Third Proportional to 565,540 and 1,219,666

Step by Step Solution

1. Step 1: Write the proportion equation
   565,540 : 1,219,666 = 1,219,666 : x
2. Step 2: Convert to fraction form
   565,540/1,219,666 = 1,219,666/x
3. Step 3: Cross multiply
   565,540x = 1,219,666 × 1,219,666
4. Step 4: Simplify right side
   565,540x = 1,487,585,151,556
5. Step 5: Solve for x
   x = 1,487,585,151,556/565,540
6. Step 6: Final answer
   x = 2,630,380.08