Finding the Third Proportional to 19,857.66 and 42,593.34

Step by Step Solution

1. Step 1: Write the proportion equation
   19,857.66 : 42,593.34 = 42,593.34 : x
2. Step 2: Convert to fraction form
   19,857.66/42,593.34 = 42,593.34/x
3. Step 3: Cross multiply
   19,857.66x = 42,593.34 × 42,593.34
4. Step 4: Simplify right side
   19,857.66x = 1,814,192,931.81
5. Step 5: Solve for x
   x = 1,814,192,931.81/19,857.66
6. Step 6: Final answer
   x = 91,359.87