Finding the Third Proportional to 9,609.89 and 20,970.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,609.89 : 20,970.14 = 20,970.14 : x
2. Step 2: Convert to fraction form
   9,609.89/20,970.14 = 20,970.14/x
3. Step 3: Cross multiply
   9,609.89x = 20,970.14 × 20,970.14
4. Step 4: Simplify right side
   9,609.89x = 439,746,797.83
5. Step 5: Solve for x
   x = 439,746,797.83/9,609.89
6. Step 6: Final answer
   x = 45,759.81