Finding the Third Proportional to 19,392.54 and 42,942.66

Step by Step Solution

1. Step 1: Write the proportion equation
   19,392.54 : 42,942.66 = 42,942.66 : x
2. Step 2: Convert to fraction form
   19,392.54/42,942.66 = 42,942.66/x
3. Step 3: Cross multiply
   19,392.54x = 42,942.66 × 42,942.66
4. Step 4: Simplify right side
   19,392.54x = 1,844,071,725.81
5. Step 5: Solve for x
   x = 1,844,071,725.81/19,392.54
6. Step 6: Final answer
   x = 95,091.81