Finding the Third Proportional to 21,920 and 45,392

Step by Step Solution

1. Step 1: Write the proportion equation
   21,920 : 45,392 = 45,392 : x
2. Step 2: Convert to fraction form
   21,920/45,392 = 45,392/x
3. Step 3: Cross multiply
   21,920x = 45,392 × 45,392
4. Step 4: Simplify right side
   21,920x = 2,060,433,664
5. Step 5: Solve for x
   x = 2,060,433,664/21,920
6. Step 6: Final answer
   x = 93,997.89