Finding the Third Proportional to 6,637.78 and 13,816.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,637.78 : 13,816.83 = 13,816.83 : x
2. Step 2: Convert to fraction form
   6,637.78/13,816.83 = 13,816.83/x
3. Step 3: Cross multiply
   6,637.78x = 13,816.83 × 13,816.83
4. Step 4: Simplify right side
   6,637.78x = 190,904,739.44
5. Step 5: Solve for x
   x = 190,904,739.44/6,637.78
6. Step 6: Final answer
   x = 28,760.32