Finding the Third Proportional to 686,922 and 1,010,519

Step by Step Solution

1. Step 1: Write the proportion equation
   686,922 : 1,010,519 = 1,010,519 : x
2. Step 2: Convert to fraction form
   686,922/1,010,519 = 1,010,519/x
3. Step 3: Cross multiply
   686,922x = 1,010,519 × 1,010,519
4. Step 4: Simplify right side
   686,922x = 1,021,148,649,361
5. Step 5: Solve for x
   x = 1,021,148,649,361/686,922
6. Step 6: Final answer
   x = 1,486,556.92