Finding the Third Proportional to 9,446.63 and 19,917.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,446.63 : 19,917.56 = 19,917.56 : x
2. Step 2: Convert to fraction form
   9,446.63/19,917.56 = 19,917.56/x
3. Step 3: Cross multiply
   9,446.63x = 19,917.56 × 19,917.56
4. Step 4: Simplify right side
   9,446.63x = 396,709,295.94
5. Step 5: Solve for x
   x = 396,709,295.94/9,446.63
6. Step 6: Final answer
   x = 41,994.82