Finding the Third Proportional to 393,900.50 and 859,093

Step by Step Solution

1. Step 1: Write the proportion equation
   393,900.50 : 859,093 = 859,093 : x
2. Step 2: Convert to fraction form
   393,900.50/859,093 = 859,093/x
3. Step 3: Cross multiply
   393,900.50x = 859,093 × 859,093
4. Step 4: Simplify right side
   393,900.50x = 738,040,782,649
5. Step 5: Solve for x
   x = 738,040,782,649/393,900.50
6. Step 6: Final answer
   x = 1,873,673.13