Finding the Third Proportional to 19,857.75 and 42,594.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,857.75 : 42,594.75 = 42,594.75 : x
2. Step 2: Convert to fraction form
   19,857.75/42,594.75 = 42,594.75/x
3. Step 3: Cross multiply
   19,857.75x = 42,594.75 × 42,594.75
4. Step 4: Simplify right side
   19,857.75x = 1,814,312,727.56
5. Step 5: Solve for x
   x = 1,814,312,727.56/19,857.75
6. Step 6: Final answer
   x = 91,365.47