Finding the Third Proportional to 21,074.08 and 31,290.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,074.08 : 31,290.05 = 31,290.05 : x
2. Step 2: Convert to fraction form
   21,074.08/31,290.05 = 31,290.05/x
3. Step 3: Cross multiply
   21,074.08x = 31,290.05 × 31,290.05
4. Step 4: Simplify right side
   21,074.08x = 979,067,033.44
5. Step 5: Solve for x
   x = 979,067,033.44/21,074.08
6. Step 6: Final answer
   x = 46,458.35