Finding the Third Proportional to 6,622 and 13,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,622 : 13,788.50 = 13,788.50 : x
2. Step 2: Convert to fraction form
   6,622/13,788.50 = 13,788.50/x
3. Step 3: Cross multiply
   6,622x = 13,788.50 × 13,788.50
4. Step 4: Simplify right side
   6,622x = 190,122,732.25
5. Step 5: Solve for x
   x = 190,122,732.25/6,622
6. Step 6: Final answer
   x = 28,710.77