Finding the Third Proportional to 13,799.74 and 18,623.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,799.74 : 18,623.67 = 18,623.67 : x
2. Step 2: Convert to fraction form
   13,799.74/18,623.67 = 18,623.67/x
3. Step 3: Cross multiply
   13,799.74x = 18,623.67 × 18,623.67
4. Step 4: Simplify right side
   13,799.74x = 346,841,154.11
5. Step 5: Solve for x
   x = 346,841,154.11/13,799.74
6. Step 6: Final answer
   x = 25,133.89