Finding the Third Proportional to 8,602.03 and 12,743.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,602.03 : 12,743.16 = 12,743.16 : x
2. Step 2: Convert to fraction form
   8,602.03/12,743.16 = 12,743.16/x
3. Step 3: Cross multiply
   8,602.03x = 12,743.16 × 12,743.16
4. Step 4: Simplify right side
   8,602.03x = 162,388,031.21
5. Step 5: Solve for x
   x = 162,388,031.21/8,602.03
6. Step 6: Final answer
   x = 18,877.87