Finding the Third Proportional to 15,876.75 and 17,491.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,876.75 : 17,491.50 = 17,491.50 : x
2. Step 2: Convert to fraction form
   15,876.75/17,491.50 = 17,491.50/x
3. Step 3: Cross multiply
   15,876.75x = 17,491.50 × 17,491.50
4. Step 4: Simplify right side
   15,876.75x = 305,952,572.25
5. Step 5: Solve for x
   x = 305,952,572.25/15,876.75
6. Step 6: Final answer
   x = 19,270.48