Finding the Third Proportional to 18,621.75 and 43,919.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,621.75 : 43,919.25 = 43,919.25 : x
2. Step 2: Convert to fraction form
   18,621.75/43,919.25 = 43,919.25/x
3. Step 3: Cross multiply
   18,621.75x = 43,919.25 × 43,919.25
4. Step 4: Simplify right side
   18,621.75x = 1,928,900,520.56
5. Step 5: Solve for x
   x = 1,928,900,520.56/18,621.75
6. Step 6: Final answer
   x = 103,583.20