Finding the Third Proportional to 686,336 and 1,034,544

Step by Step Solution

1. Step 1: Write the proportion equation
   686,336 : 1,034,544 = 1,034,544 : x
2. Step 2: Convert to fraction form
   686,336/1,034,544 = 1,034,544/x
3. Step 3: Cross multiply
   686,336x = 1,034,544 × 1,034,544
4. Step 4: Simplify right side
   686,336x = 1,070,281,287,936
5. Step 5: Solve for x
   x = 1,070,281,287,936/686,336
6. Step 6: Final answer
   x = 1,559,413.01