Finding the Third Proportional to 12,938 and 20,924

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938 : 20,924 = 20,924 : x
2. Step 2: Convert to fraction form
   12,938/20,924 = 20,924/x
3. Step 3: Cross multiply
   12,938x = 20,924 × 20,924
4. Step 4: Simplify right side
   12,938x = 437,813,776
5. Step 5: Solve for x
   x = 437,813,776/12,938
6. Step 6: Final answer
   x = 33,839.37