Finding the Third Proportional to 12,615.75 and 19,792.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,615.75 : 19,792.69 = 19,792.69 : x
2. Step 2: Convert to fraction form
   12,615.75/19,792.69 = 19,792.69/x
3. Step 3: Cross multiply
   12,615.75x = 19,792.69 × 19,792.69
4. Step 4: Simplify right side
   12,615.75x = 391,750,478.47
5. Step 5: Solve for x
   x = 391,750,478.47/12,615.75
6. Step 6: Final answer
   x = 31,052.49