Finding the Third Proportional to 12,380 and 18,938

Step by Step Solution

1. Step 1: Write the proportion equation
   12,380 : 18,938 = 18,938 : x
2. Step 2: Convert to fraction form
   12,380/18,938 = 18,938/x
3. Step 3: Cross multiply
   12,380x = 18,938 × 18,938
4. Step 4: Simplify right side
   12,380x = 358,647,844
5. Step 5: Solve for x
   x = 358,647,844/12,380
6. Step 6: Final answer
   x = 28,969.94