Finding the Third Proportional to 686,988 and 1,010,582

Step by Step Solution

1. Step 1: Write the proportion equation
   686,988 : 1,010,582 = 1,010,582 : x
2. Step 2: Convert to fraction form
   686,988/1,010,582 = 1,010,582/x
3. Step 3: Cross multiply
   686,988x = 1,010,582 × 1,010,582
4. Step 4: Simplify right side
   686,988x = 1,021,275,978,724
5. Step 5: Solve for x
   x = 1,021,275,978,724/686,988
6. Step 6: Final answer
   x = 1,486,599.44