Finding the Third Proportional to 12,705.61 and 18,874.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,705.61 : 18,874.48 = 18,874.48 : x
2. Step 2: Convert to fraction form
   12,705.61/18,874.48 = 18,874.48/x
3. Step 3: Cross multiply
   12,705.61x = 18,874.48 × 18,874.48
4. Step 4: Simplify right side
   12,705.61x = 356,245,865.51
5. Step 5: Solve for x
   x = 356,245,865.51/12,705.61
6. Step 6: Final answer
   x = 28,038.47