Finding the Third Proportional to 12,987.38 and 19,568.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,987.38 : 19,568.81 = 19,568.81 : x
2. Step 2: Convert to fraction form
   12,987.38/19,568.81 = 19,568.81/x
3. Step 3: Cross multiply
   12,987.38x = 19,568.81 × 19,568.81
4. Step 4: Simplify right side
   12,987.38x = 382,938,422.66
5. Step 5: Solve for x
   x = 382,938,422.66/12,987.38
6. Step 6: Final answer
   x = 29,485.44