Finding the Third Proportional to 383,868 and 581,089.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,868 : 581,089.50 = 581,089.50 : x
2. Step 2: Convert to fraction form
   383,868/581,089.50 = 581,089.50/x
3. Step 3: Cross multiply
   383,868x = 581,089.50 × 581,089.50
4. Step 4: Simplify right side
   383,868x = 337,665,007,010.25
5. Step 5: Solve for x
   x = 337,665,007,010.25/383,868
6. Step 6: Final answer
   x = 879,638.33