Finding the Third Proportional to 10,999.69 and 14,945.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,999.69 : 14,945.06 = 14,945.06 : x
2. Step 2: Convert to fraction form
   10,999.69/14,945.06 = 14,945.06/x
3. Step 3: Cross multiply
   10,999.69x = 14,945.06 × 14,945.06
4. Step 4: Simplify right side
   10,999.69x = 223,354,893.13
5. Step 5: Solve for x
   x = 223,354,893.13/10,999.69
6. Step 6: Final answer
   x = 20,305.57