Finding the Third Proportional to 10,212.75 and 14,009.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,212.75 : 14,009.63 = 14,009.63 : x
2. Step 2: Convert to fraction form
   10,212.75/14,009.63 = 14,009.63/x
3. Step 3: Cross multiply
   10,212.75x = 14,009.63 × 14,009.63
4. Step 4: Simplify right side
   10,212.75x = 196,269,592.64
5. Step 5: Solve for x
   x = 196,269,592.64/10,212.75
6. Step 6: Final answer
   x = 19,218.09