Finding the Third Proportional to 384,856 and 573,180

Step by Step Solution

1. Step 1: Write the proportion equation
   384,856 : 573,180 = 573,180 : x
2. Step 2: Convert to fraction form
   384,856/573,180 = 573,180/x
3. Step 3: Cross multiply
   384,856x = 573,180 × 573,180
4. Step 4: Simplify right side
   384,856x = 328,535,312,400
5. Step 5: Solve for x
   x = 328,535,312,400/384,856
6. Step 6: Final answer
   x = 853,657.76