Finding the Third Proportional to 686,992 and 1,010,588

Step by Step Solution

1. Step 1: Write the proportion equation
   686,992 : 1,010,588 = 1,010,588 : x
2. Step 2: Convert to fraction form
   686,992/1,010,588 = 1,010,588/x
3. Step 3: Cross multiply
   686,992x = 1,010,588 × 1,010,588
4. Step 4: Simplify right side
   686,992x = 1,021,288,105,744
5. Step 5: Solve for x
   x = 1,021,288,105,744/686,992
6. Step 6: Final answer
   x = 1,486,608.44