Finding the Third Proportional to 10,089.56 and 20,587.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,089.56 : 20,587.92 = 20,587.92 : x
2. Step 2: Convert to fraction form
   10,089.56/20,587.92 = 20,587.92/x
3. Step 3: Cross multiply
   10,089.56x = 20,587.92 × 20,587.92
4. Step 4: Simplify right side
   10,089.56x = 423,862,527.13
5. Step 5: Solve for x
   x = 423,862,527.13/10,089.56
6. Step 6: Final answer
   x = 42,010.00