Finding the Third Proportional to 12,503.81 and 18,261.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,503.81 : 18,261.56 = 18,261.56 : x
2. Step 2: Convert to fraction form
   12,503.81/18,261.56 = 18,261.56/x
3. Step 3: Cross multiply
   12,503.81x = 18,261.56 × 18,261.56
4. Step 4: Simplify right side
   12,503.81x = 333,484,664.94
5. Step 5: Solve for x
   x = 333,484,664.94/12,503.81
6. Step 6: Final answer
   x = 26,670.64