Finding the Third Proportional to 13,939.50 and 21,864

Step by Step Solution

1. Step 1: Write the proportion equation
   13,939.50 : 21,864 = 21,864 : x
2. Step 2: Convert to fraction form
   13,939.50/21,864 = 21,864/x
3. Step 3: Cross multiply
   13,939.50x = 21,864 × 21,864
4. Step 4: Simplify right side
   13,939.50x = 478,034,496
5. Step 5: Solve for x
   x = 478,034,496/13,939.50
6. Step 6: Final answer
   x = 34,293.52