Finding the Third Proportional to 12,645 and 17,796.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645 : 17,796.75 = 17,796.75 : x
2. Step 2: Convert to fraction form
   12,645/17,796.75 = 17,796.75/x
3. Step 3: Cross multiply
   12,645x = 17,796.75 × 17,796.75
4. Step 4: Simplify right side
   12,645x = 316,724,310.56
5. Step 5: Solve for x
   x = 316,724,310.56/12,645
6. Step 6: Final answer
   x = 25,047.40