Finding the Third Proportional to 18,191.25 and 38,584.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,191.25 : 38,584.50 = 38,584.50 : x
2. Step 2: Convert to fraction form
   18,191.25/38,584.50 = 38,584.50/x
3. Step 3: Cross multiply
   18,191.25x = 38,584.50 × 38,584.50
4. Step 4: Simplify right side
   18,191.25x = 1,488,763,640.25
5. Step 5: Solve for x
   x = 1,488,763,640.25/18,191.25
6. Step 6: Final answer
   x = 81,839.55