Finding the Third Proportional to 383,615.50 and 580,754

Step by Step Solution

1. Step 1: Write the proportion equation
   383,615.50 : 580,754 = 580,754 : x
2. Step 2: Convert to fraction form
   383,615.50/580,754 = 580,754/x
3. Step 3: Cross multiply
   383,615.50x = 580,754 × 580,754
4. Step 4: Simplify right side
   383,615.50x = 337,275,208,516
5. Step 5: Solve for x
   x = 337,275,208,516/383,615.50
6. Step 6: Final answer
   x = 879,201.20