Finding the Third Proportional to 393,014.75 and 842,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   393,014.75 : 842,061.25 = 842,061.25 : x
2. Step 2: Convert to fraction form
   393,014.75/842,061.25 = 842,061.25/x
3. Step 3: Cross multiply
   393,014.75x = 842,061.25 × 842,061.25
4. Step 4: Simplify right side
   393,014.75x = 709,067,148,751.56
5. Step 5: Solve for x
   x = 709,067,148,751.56/393,014.75
6. Step 6: Final answer
   x = 1,804,174.39