Finding the Third Proportional to 18,838.50 and 27,690.75

Step by Step Solution

1. Step 1: Write the proportion equation
   18,838.50 : 27,690.75 = 27,690.75 : x
2. Step 2: Convert to fraction form
   18,838.50/27,690.75 = 27,690.75/x
3. Step 3: Cross multiply
   18,838.50x = 27,690.75 × 27,690.75
4. Step 4: Simplify right side
   18,838.50x = 766,777,635.56
5. Step 5: Solve for x
   x = 766,777,635.56/18,838.50
6. Step 6: Final answer
   x = 40,702.69