Finding the Third Proportional to 419,116.50 and 857,601

Step by Step Solution

1. Step 1: Write the proportion equation
   419,116.50 : 857,601 = 857,601 : x
2. Step 2: Convert to fraction form
   419,116.50/857,601 = 857,601/x
3. Step 3: Cross multiply
   419,116.50x = 857,601 × 857,601
4. Step 4: Simplify right side
   419,116.50x = 735,479,475,201
5. Step 5: Solve for x
   x = 735,479,475,201/419,116.50
6. Step 6: Final answer
   x = 1,754,833.02