Finding the Third Proportional to 19,431.75 and 41,619.94

Step by Step Solution

1. Step 1: Write the proportion equation
   19,431.75 : 41,619.94 = 41,619.94 : x
2. Step 2: Convert to fraction form
   19,431.75/41,619.94 = 41,619.94/x
3. Step 3: Cross multiply
   19,431.75x = 41,619.94 × 41,619.94
4. Step 4: Simplify right side
   19,431.75x = 1,732,219,197.50
5. Step 5: Solve for x
   x = 1,732,219,197.50/19,431.75
6. Step 6: Final answer
   x = 89,143.76