Finding the Third Proportional to 19,019.85 and 40,903.73

Step by Step Solution

1. Step 1: Write the proportion equation
   19,019.85 : 40,903.73 = 40,903.73 : x
2. Step 2: Convert to fraction form
   19,019.85/40,903.73 = 40,903.73/x
3. Step 3: Cross multiply
   19,019.85x = 40,903.73 × 40,903.73
4. Step 4: Simplify right side
   19,019.85x = 1,673,115,485.82
5. Step 5: Solve for x
   x = 1,673,115,485.82/19,019.85
6. Step 6: Final answer
   x = 87,966.80