Finding the Third Proportional to 8,758 and 13,584

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758 : 13,584 = 13,584 : x
2. Step 2: Convert to fraction form
   8,758/13,584 = 13,584/x
3. Step 3: Cross multiply
   8,758x = 13,584 × 13,584
4. Step 4: Simplify right side
   8,758x = 184,525,056
5. Step 5: Solve for x
   x = 184,525,056/8,758
6. Step 6: Final answer
   x = 21,069.31