Finding the Third Proportional to 16,556.63 and 24,990.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,556.63 : 24,990.38 = 24,990.38 : x
2. Step 2: Convert to fraction form
   16,556.63/24,990.38 = 24,990.38/x
3. Step 3: Cross multiply
   16,556.63x = 24,990.38 × 24,990.38
4. Step 4: Simplify right side
   16,556.63x = 624,518,842.64
5. Step 5: Solve for x
   x = 624,518,842.64/16,556.63
6. Step 6: Final answer
   x = 37,720.18