Finding the Third Proportional to 400,857 and 834,883.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,857 : 834,883.50 = 834,883.50 : x
2. Step 2: Convert to fraction form
   400,857/834,883.50 = 834,883.50/x
3. Step 3: Cross multiply
   400,857x = 834,883.50 × 834,883.50
4. Step 4: Simplify right side
   400,857x = 697,030,458,572.25
5. Step 5: Solve for x
   x = 697,030,458,572.25/400,857
6. Step 6: Final answer
   x = 1,738,850.66