Finding the Third Proportional to 12,870.56 and 30,067.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.56 : 30,067.88 = 30,067.88 : x
2. Step 2: Convert to fraction form
   12,870.56/30,067.88 = 30,067.88/x
3. Step 3: Cross multiply
   12,870.56x = 30,067.88 × 30,067.88
4. Step 4: Simplify right side
   12,870.56x = 904,077,107.02
5. Step 5: Solve for x
   x = 904,077,107.02/12,870.56
6. Step 6: Final answer
   x = 70,243.79