Finding the Third Proportional to 9,273.50 and 21,879.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,273.50 : 21,879.50 = 21,879.50 : x
2. Step 2: Convert to fraction form
   9,273.50/21,879.50 = 21,879.50/x
3. Step 3: Cross multiply
   9,273.50x = 21,879.50 × 21,879.50
4. Step 4: Simplify right side
   9,273.50x = 478,712,520.25
5. Step 5: Solve for x
   x = 478,712,520.25/9,273.50
6. Step 6: Final answer
   x = 51,621.56