Finding the Third Proportional to 8,451 and 12,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,451 : 12,934.50 = 12,934.50 : x
2. Step 2: Convert to fraction form
   8,451/12,934.50 = 12,934.50/x
3. Step 3: Cross multiply
   8,451x = 12,934.50 × 12,934.50
4. Step 4: Simplify right side
   8,451x = 167,301,290.25
5. Step 5: Solve for x
   x = 167,301,290.25/8,451
6. Step 6: Final answer
   x = 19,796.63