Finding the Third Proportional to 8,602.77 and 12,579.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,602.77 : 12,579.52 = 12,579.52 : x
2. Step 2: Convert to fraction form
   8,602.77/12,579.52 = 12,579.52/x
3. Step 3: Cross multiply
   8,602.77x = 12,579.52 × 12,579.52
4. Step 4: Simplify right side
   8,602.77x = 158,244,360.78
5. Step 5: Solve for x
   x = 158,244,360.78/8,602.77
6. Step 6: Final answer
   x = 18,394.58