Finding the Third Proportional to 21,616 and 30,840

Step by Step Solution

1. Step 1: Write the proportion equation
   21,616 : 30,840 = 30,840 : x
2. Step 2: Convert to fraction form
   21,616/30,840 = 30,840/x
3. Step 3: Cross multiply
   21,616x = 30,840 × 30,840
4. Step 4: Simplify right side
   21,616x = 951,105,600
5. Step 5: Solve for x
   x = 951,105,600/21,616
6. Step 6: Final answer
   x = 44,000.07