Finding the Third Proportional to 11,308.50 and 12,807.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,308.50 : 12,807.56 = 12,807.56 : x
2. Step 2: Convert to fraction form
   11,308.50/12,807.56 = 12,807.56/x
3. Step 3: Cross multiply
   11,308.50x = 12,807.56 × 12,807.56
4. Step 4: Simplify right side
   11,308.50x = 164,033,657.19
5. Step 5: Solve for x
   x = 164,033,657.19/11,308.50
6. Step 6: Final answer
   x = 14,505.34