Finding the Third Proportional to 8,755.59 and 13,580.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.59 : 13,580.16 = 13,580.16 : x
2. Step 2: Convert to fraction form
   8,755.59/13,580.16 = 13,580.16/x
3. Step 3: Cross multiply
   8,755.59x = 13,580.16 × 13,580.16
4. Step 4: Simplify right side
   8,755.59x = 184,420,643.77
5. Step 5: Solve for x
   x = 184,420,643.77/8,755.59
6. Step 6: Final answer
   x = 21,063.18