Finding the Third Proportional to 19,631.75 and 42,609.25

Step by Step Solution

1. Step 1: Write the proportion equation
   19,631.75 : 42,609.25 = 42,609.25 : x
2. Step 2: Convert to fraction form
   19,631.75/42,609.25 = 42,609.25/x
3. Step 3: Cross multiply
   19,631.75x = 42,609.25 × 42,609.25
4. Step 4: Simplify right side
   19,631.75x = 1,815,548,185.56
5. Step 5: Solve for x
   x = 1,815,548,185.56/19,631.75
6. Step 6: Final answer
   x = 92,480.20