Finding the Third Proportional to 12,298.50 and 18,930.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.50 : 18,930.38 = 18,930.38 : x
2. Step 2: Convert to fraction form
   12,298.50/18,930.38 = 18,930.38/x
3. Step 3: Cross multiply
   12,298.50x = 18,930.38 × 18,930.38
4. Step 4: Simplify right side
   12,298.50x = 358,359,097.64
5. Step 5: Solve for x
   x = 358,359,097.64/12,298.50
6. Step 6: Final answer
   x = 29,138.44