Finding the Third Proportional to 9,009.98 and 13,279.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,009.98 : 13,279.57 = 13,279.57 : x
2. Step 2: Convert to fraction form
   9,009.98/13,279.57 = 13,279.57/x
3. Step 3: Cross multiply
   9,009.98x = 13,279.57 × 13,279.57
4. Step 4: Simplify right side
   9,009.98x = 176,346,987.68
5. Step 5: Solve for x
   x = 176,346,987.68/9,009.98
6. Step 6: Final answer
   x = 19,572.40