Finding the Third Proportional to 11,873.63 and 18,529.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,873.63 : 18,529.31 = 18,529.31 : x
2. Step 2: Convert to fraction form
   11,873.63/18,529.31 = 18,529.31/x
3. Step 3: Cross multiply
   11,873.63x = 18,529.31 × 18,529.31
4. Step 4: Simplify right side
   11,873.63x = 343,335,421.72
5. Step 5: Solve for x
   x = 343,335,421.72/11,873.63
6. Step 6: Final answer
   x = 28,915.80