Finding the Third Proportional to 12,994.88 and 20,113.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.88 : 20,113.31 = 20,113.31 : x
2. Step 2: Convert to fraction form
   12,994.88/20,113.31 = 20,113.31/x
3. Step 3: Cross multiply
   12,994.88x = 20,113.31 × 20,113.31
4. Step 4: Simplify right side
   12,994.88x = 404,545,339.72
5. Step 5: Solve for x
   x = 404,545,339.72/12,994.88
6. Step 6: Final answer
   x = 31,131.15