Finding the Third Proportional to 18,976.50 and 28,361.81

Step by Step Solution

1. Step 1: Write the proportion equation
   18,976.50 : 28,361.81 = 28,361.81 : x
2. Step 2: Convert to fraction form
   18,976.50/28,361.81 = 28,361.81/x
3. Step 3: Cross multiply
   18,976.50x = 28,361.81 × 28,361.81
4. Step 4: Simplify right side
   18,976.50x = 804,392,408.29
5. Step 5: Solve for x
   x = 804,392,408.29/18,976.50
6. Step 6: Final answer
   x = 42,388.87