Finding the Third Proportional to 11,345.06 and 17,987.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,345.06 : 17,987.06 = 17,987.06 : x
2. Step 2: Convert to fraction form
   11,345.06/17,987.06 = 17,987.06/x
3. Step 3: Cross multiply
   11,345.06x = 17,987.06 × 17,987.06
4. Step 4: Simplify right side
   11,345.06x = 323,534,417.38
5. Step 5: Solve for x
   x = 323,534,417.38/11,345.06
6. Step 6: Final answer
   x = 28,517.64