Finding the Third Proportional to 11,288.81 and 13,339.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,288.81 : 13,339.13 = 13,339.13 : x
2. Step 2: Convert to fraction form
   11,288.81/13,339.13 = 13,339.13/x
3. Step 3: Cross multiply
   11,288.81x = 13,339.13 × 13,339.13
4. Step 4: Simplify right side
   11,288.81x = 177,932,255.77
5. Step 5: Solve for x
   x = 177,932,255.77/11,288.81
6. Step 6: Final answer
   x = 15,761.82