Finding the Third Proportional to 10,688.63 and 14,254.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,688.63 : 14,254.31 = 14,254.31 : x
2. Step 2: Convert to fraction form
   10,688.63/14,254.31 = 14,254.31/x
3. Step 3: Cross multiply
   10,688.63x = 14,254.31 × 14,254.31
4. Step 4: Simplify right side
   10,688.63x = 203,185,424.85
5. Step 5: Solve for x
   x = 203,185,424.85/10,688.63
6. Step 6: Final answer
   x = 19,009.50