Finding the Third Proportional to 9,780 and 20,945

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780 : 20,945 = 20,945 : x
2. Step 2: Convert to fraction form
   9,780/20,945 = 20,945/x
3. Step 3: Cross multiply
   9,780x = 20,945 × 20,945
4. Step 4: Simplify right side
   9,780x = 438,693,025
5. Step 5: Solve for x
   x = 438,693,025/9,780
6. Step 6: Final answer
   x = 44,856.14