Finding the Third Proportional to 599,259 and 1,287,456

Step by Step Solution

1. Step 1: Write the proportion equation
   599,259 : 1,287,456 = 1,287,456 : x
2. Step 2: Convert to fraction form
   599,259/1,287,456 = 1,287,456/x
3. Step 3: Cross multiply
   599,259x = 1,287,456 × 1,287,456
4. Step 4: Simplify right side
   599,259x = 1,657,542,951,936
5. Step 5: Solve for x
   x = 1,657,542,951,936/599,259
6. Step 6: Final answer
   x = 2,765,987.58