Finding the Third Proportional to 16,491.56 and 38,890.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,491.56 : 38,890.31 = 38,890.31 : x
2. Step 2: Convert to fraction form
   16,491.56/38,890.31 = 38,890.31/x
3. Step 3: Cross multiply
   16,491.56x = 38,890.31 × 38,890.31
4. Step 4: Simplify right side
   16,491.56x = 1,512,456,406.35
5. Step 5: Solve for x
   x = 1,512,456,406.35/16,491.56
6. Step 6: Final answer
   x = 91,710.92