Finding the Third Proportional to 686,314 and 1,034,872

Step by Step Solution

1. Step 1: Write the proportion equation
   686,314 : 1,034,872 = 1,034,872 : x
2. Step 2: Convert to fraction form
   686,314/1,034,872 = 1,034,872/x
3. Step 3: Cross multiply
   686,314x = 1,034,872 × 1,034,872
4. Step 4: Simplify right side
   686,314x = 1,070,960,056,384
5. Step 5: Solve for x
   x = 1,070,960,056,384/686,314
6. Step 6: Final answer
   x = 1,560,452.00