Finding the Third Proportional to 9,412.88 and 20,542.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,412.88 : 20,542.78 = 20,542.78 : x
2. Step 2: Convert to fraction form
   9,412.88/20,542.78 = 20,542.78/x
3. Step 3: Cross multiply
   9,412.88x = 20,542.78 × 20,542.78
4. Step 4: Simplify right side
   9,412.88x = 422,005,861.49
5. Step 5: Solve for x
   x = 422,005,861.49/9,412.88
6. Step 6: Final answer
   x = 44,832.83