Finding the Third Proportional to 254,269.50 and 384,687

Step by Step Solution

1. Step 1: Write the proportion equation
   254,269.50 : 384,687 = 384,687 : x
2. Step 2: Convert to fraction form
   254,269.50/384,687 = 384,687/x
3. Step 3: Cross multiply
   254,269.50x = 384,687 × 384,687
4. Step 4: Simplify right side
   254,269.50x = 147,984,087,969
5. Step 5: Solve for x
   x = 147,984,087,969/254,269.50
6. Step 6: Final answer
   x = 581,997.01