Finding the Third Proportional to 590,816 and 1,288,564

Step by Step Solution

1. Step 1: Write the proportion equation
   590,816 : 1,288,564 = 1,288,564 : x
2. Step 2: Convert to fraction form
   590,816/1,288,564 = 1,288,564/x
3. Step 3: Cross multiply
   590,816x = 1,288,564 × 1,288,564
4. Step 4: Simplify right side
   590,816x = 1,660,397,182,096
5. Step 5: Solve for x
   x = 1,660,397,182,096/590,816
6. Step 6: Final answer
   x = 2,810,345.66