Finding the Third Proportional to 19,603 and 40,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,603 : 40,245.50 = 40,245.50 : x
2. Step 2: Convert to fraction form
   19,603/40,245.50 = 40,245.50/x
3. Step 3: Cross multiply
   19,603x = 40,245.50 × 40,245.50
4. Step 4: Simplify right side
   19,603x = 1,619,700,270.25
5. Step 5: Solve for x
   x = 1,619,700,270.25/19,603
6. Step 6: Final answer
   x = 82,625.12