Finding the Third Proportional to 8,003.81 and 12,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.81 : 12,572.72 = 12,572.72 : x
2. Step 2: Convert to fraction form
   8,003.81/12,572.72 = 12,572.72/x
3. Step 3: Cross multiply
   8,003.81x = 12,572.72 × 12,572.72
4. Step 4: Simplify right side
   8,003.81x = 158,073,256.77
5. Step 5: Solve for x
   x = 158,073,256.77/8,003.81
6. Step 6: Final answer
   x = 19,749.75