Finding the Third Proportional to 12,418.31 and 16,113.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,418.31 : 16,113.94 = 16,113.94 : x
2. Step 2: Convert to fraction form
   12,418.31/16,113.94 = 16,113.94/x
3. Step 3: Cross multiply
   12,418.31x = 16,113.94 × 16,113.94
4. Step 4: Simplify right side
   12,418.31x = 259,658,981.75
5. Step 5: Solve for x
   x = 259,658,981.75/12,418.31
6. Step 6: Final answer
   x = 20,909.36