Finding the Third Proportional to 10,155.38 and 13,581

Step by Step Solution

1. Step 1: Write the proportion equation
   10,155.38 : 13,581 = 13,581 : x
2. Step 2: Convert to fraction form
   10,155.38/13,581 = 13,581/x
3. Step 3: Cross multiply
   10,155.38x = 13,581 × 13,581
4. Step 4: Simplify right side
   10,155.38x = 184,443,561
5. Step 5: Solve for x
   x = 184,443,561/10,155.38
6. Step 6: Final answer
   x = 18,162.16