Finding the Third Proportional to 9,921.23 and 13,463.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.23 : 13,463.72 = 13,463.72 : x
2. Step 2: Convert to fraction form
   9,921.23/13,463.72 = 13,463.72/x
3. Step 3: Cross multiply
   9,921.23x = 13,463.72 × 13,463.72
4. Step 4: Simplify right side
   9,921.23x = 181,271,722.58
5. Step 5: Solve for x
   x = 181,271,722.58/9,921.23
6. Step 6: Final answer
   x = 18,271.09