Finding the Third Proportional to 13,583 and 21,612

Step by Step Solution

1. Step 1: Write the proportion equation
   13,583 : 21,612 = 21,612 : x
2. Step 2: Convert to fraction form
   13,583/21,612 = 21,612/x
3. Step 3: Cross multiply
   13,583x = 21,612 × 21,612
4. Step 4: Simplify right side
   13,583x = 467,078,544
5. Step 5: Solve for x
   x = 467,078,544/13,583
6. Step 6: Final answer
   x = 34,386.99