Finding the Third Proportional to 686,824 and 1,050,651

Step by Step Solution

1. Step 1: Write the proportion equation
   686,824 : 1,050,651 = 1,050,651 : x
2. Step 2: Convert to fraction form
   686,824/1,050,651 = 1,050,651/x
3. Step 3: Cross multiply
   686,824x = 1,050,651 × 1,050,651
4. Step 4: Simplify right side
   686,824x = 1,103,867,523,801
5. Step 5: Solve for x
   x = 1,103,867,523,801/686,824
6. Step 6: Final answer
   x = 1,607,205.81