Finding the Third Proportional to 7,801.50 and 17,919.75

Step by Step Solution

1. Step 1: Write the proportion equation
   7,801.50 : 17,919.75 = 17,919.75 : x
2. Step 2: Convert to fraction form
   7,801.50/17,919.75 = 17,919.75/x
3. Step 3: Cross multiply
   7,801.50x = 17,919.75 × 17,919.75
4. Step 4: Simplify right side
   7,801.50x = 321,117,440.06
5. Step 5: Solve for x
   x = 321,117,440.06/7,801.50
6. Step 6: Final answer
   x = 41,160.99