Finding the Third Proportional to 541,854 and 858,703.50

Step by Step Solution

1. Step 1: Write the proportion equation
   541,854 : 858,703.50 = 858,703.50 : x
2. Step 2: Convert to fraction form
   541,854/858,703.50 = 858,703.50/x
3. Step 3: Cross multiply
   541,854x = 858,703.50 × 858,703.50
4. Step 4: Simplify right side
   541,854x = 737,371,700,912.25
5. Step 5: Solve for x
   x = 737,371,700,912.25/541,854
6. Step 6: Final answer
   x = 1,360,830.96