Finding the Third Proportional to 11,603.53 and 17,693.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,603.53 : 17,693.86 = 17,693.86 : x
2. Step 2: Convert to fraction form
   11,603.53/17,693.86 = 17,693.86/x
3. Step 3: Cross multiply
   11,603.53x = 17,693.86 × 17,693.86
4. Step 4: Simplify right side
   11,603.53x = 313,072,659.58
5. Step 5: Solve for x
   x = 313,072,659.58/11,603.53
6. Step 6: Final answer
   x = 26,980.81