Finding the Third Proportional to 19,227.38 and 39,985.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,227.38 : 39,985.31 = 39,985.31 : x
2. Step 2: Convert to fraction form
   19,227.38/39,985.31 = 39,985.31/x
3. Step 3: Cross multiply
   19,227.38x = 39,985.31 × 39,985.31
4. Step 4: Simplify right side
   19,227.38x = 1,598,825,215.72
5. Step 5: Solve for x
   x = 1,598,825,215.72/19,227.38
6. Step 6: Final answer
   x = 83,153.59