Finding the Third Proportional to 6,888 and 13,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,888 : 13,087.50 = 13,087.50 : x
2. Step 2: Convert to fraction form
   6,888/13,087.50 = 13,087.50/x
3. Step 3: Cross multiply
   6,888x = 13,087.50 × 13,087.50
4. Step 4: Simplify right side
   6,888x = 171,282,656.25
5. Step 5: Solve for x
   x = 171,282,656.25/6,888
6. Step 6: Final answer
   x = 24,866.82