Finding the Third Proportional to 19,429.50 and 40,242

Step by Step Solution

1. Step 1: Write the proportion equation
   19,429.50 : 40,242 = 40,242 : x
2. Step 2: Convert to fraction form
   19,429.50/40,242 = 40,242/x
3. Step 3: Cross multiply
   19,429.50x = 40,242 × 40,242
4. Step 4: Simplify right side
   19,429.50x = 1,619,418,564
5. Step 5: Solve for x
   x = 1,619,418,564/19,429.50
6. Step 6: Final answer
   x = 83,348.44