Finding the Third Proportional to 315,384 and 683,262

Step by Step Solution

1. Step 1: Write the proportion equation
   315,384 : 683,262 = 683,262 : x
2. Step 2: Convert to fraction form
   315,384/683,262 = 683,262/x
3. Step 3: Cross multiply
   315,384x = 683,262 × 683,262
4. Step 4: Simplify right side
   315,384x = 466,846,960,644
5. Step 5: Solve for x
   x = 466,846,960,644/315,384
6. Step 6: Final answer
   x = 1,480,249.35