Finding the Third Proportional to 683,406 and 1,086,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   683,406 : 1,086,142.50 = 1,086,142.50 : x
2. Step 2: Convert to fraction form
   683,406/1,086,142.50 = 1,086,142.50/x
3. Step 3: Cross multiply
   683,406x = 1,086,142.50 × 1,086,142.50
4. Step 4: Simplify right side
   683,406x = 1,179,705,530,306.25
5. Step 5: Solve for x
   x = 1,179,705,530,306.25/683,406
6. Step 6: Final answer
   x = 1,726,214.77