Finding the Third Proportional to 9,221.50 and 19,757.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,221.50 : 19,757.88 = 19,757.88 : x
2. Step 2: Convert to fraction form
   9,221.50/19,757.88 = 19,757.88/x
3. Step 3: Cross multiply
   9,221.50x = 19,757.88 × 19,757.88
4. Step 4: Simplify right side
   9,221.50x = 390,373,624.52
5. Step 5: Solve for x
   x = 390,373,624.52/9,221.50
6. Step 6: Final answer
   x = 42,332.99