Finding the Third Proportional to 263,018.50 and 384,684

Step by Step Solution

1. Step 1: Write the proportion equation
   263,018.50 : 384,684 = 384,684 : x
2. Step 2: Convert to fraction form
   263,018.50/384,684 = 384,684/x
3. Step 3: Cross multiply
   263,018.50x = 384,684 × 384,684
4. Step 4: Simplify right side
   263,018.50x = 147,981,779,856
5. Step 5: Solve for x
   x = 147,981,779,856/263,018.50
6. Step 6: Final answer
   x = 562,628.79