Finding the Third Proportional to 11,030.50 and 20,945

Step by Step Solution

1. Step 1: Write the proportion equation
   11,030.50 : 20,945 = 20,945 : x
2. Step 2: Convert to fraction form
   11,030.50/20,945 = 20,945/x
3. Step 3: Cross multiply
   11,030.50x = 20,945 × 20,945
4. Step 4: Simplify right side
   11,030.50x = 438,693,025
5. Step 5: Solve for x
   x = 438,693,025/11,030.50
6. Step 6: Final answer
   x = 39,770.91