Finding the Third Proportional to 21,589 and 30,358

Step by Step Solution

1. Step 1: Write the proportion equation
   21,589 : 30,358 = 30,358 : x
2. Step 2: Convert to fraction form
   21,589/30,358 = 30,358/x
3. Step 3: Cross multiply
   21,589x = 30,358 × 30,358
4. Step 4: Simplify right side
   21,589x = 921,608,164
5. Step 5: Solve for x
   x = 921,608,164/21,589
6. Step 6: Final answer
   x = 42,688.78