Finding the Third Proportional to 686,864 and 1,050,693

Step by Step Solution

1. Step 1: Write the proportion equation
   686,864 : 1,050,693 = 1,050,693 : x
2. Step 2: Convert to fraction form
   686,864/1,050,693 = 1,050,693/x
3. Step 3: Cross multiply
   686,864x = 1,050,693 × 1,050,693
4. Step 4: Simplify right side
   686,864x = 1,103,955,780,249
5. Step 5: Solve for x
   x = 1,103,955,780,249/686,864
6. Step 6: Final answer
   x = 1,607,240.71