Finding the Third Proportional to 19,429.59 and 41,921.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,429.59 : 41,921.72 = 41,921.72 : x
2. Step 2: Convert to fraction form
   19,429.59/41,921.72 = 41,921.72/x
3. Step 3: Cross multiply
   19,429.59x = 41,921.72 × 41,921.72
4. Step 4: Simplify right side
   19,429.59x = 1,757,430,502.95
5. Step 5: Solve for x
   x = 1,757,430,502.95/19,429.59
6. Step 6: Final answer
   x = 90,451.22