Finding the Third Proportional to 19,442.81 and 41,639.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,442.81 : 41,639.63 = 41,639.63 : x
2. Step 2: Convert to fraction form
   19,442.81/41,639.63 = 41,639.63/x
3. Step 3: Cross multiply
   19,442.81x = 41,639.63 × 41,639.63
4. Step 4: Simplify right side
   19,442.81x = 1,733,858,370.14
5. Step 5: Solve for x
   x = 1,733,858,370.14/19,442.81
6. Step 6: Final answer
   x = 89,177.34