Finding the Third Proportional to 11,155.50 and 17,935.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,155.50 : 17,935.88 = 17,935.88 : x
2. Step 2: Convert to fraction form
   11,155.50/17,935.88 = 17,935.88/x
3. Step 3: Cross multiply
   11,155.50x = 17,935.88 × 17,935.88
4. Step 4: Simplify right side
   11,155.50x = 321,695,612.02
5. Step 5: Solve for x
   x = 321,695,612.02/11,155.50
6. Step 6: Final answer
   x = 28,837.40