Finding the Third Proportional to 715,986 and 1,559,790

Step by Step Solution

1. Step 1: Write the proportion equation
   715,986 : 1,559,790 = 1,559,790 : x
2. Step 2: Convert to fraction form
   715,986/1,559,790 = 1,559,790/x
3. Step 3: Cross multiply
   715,986x = 1,559,790 × 1,559,790
4. Step 4: Simplify right side
   715,986x = 2,432,944,844,100
5. Step 5: Solve for x
   x = 2,432,944,844,100/715,986
6. Step 6: Final answer
   x = 3,398,034.10