Finding the Third Proportional to 599,666 and 1,288,260

Step by Step Solution

1. Step 1: Write the proportion equation
   599,666 : 1,288,260 = 1,288,260 : x
2. Step 2: Convert to fraction form
   599,666/1,288,260 = 1,288,260/x
3. Step 3: Cross multiply
   599,666x = 1,288,260 × 1,288,260
4. Step 4: Simplify right side
   599,666x = 1,659,613,827,600
5. Step 5: Solve for x
   x = 1,659,613,827,600/599,666
6. Step 6: Final answer
   x = 2,767,563.66