Finding the Third Proportional to 9,861.75 and 21,016.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,861.75 : 21,016.13 = 21,016.13 : x
2. Step 2: Convert to fraction form
   9,861.75/21,016.13 = 21,016.13/x
3. Step 3: Cross multiply
   9,861.75x = 21,016.13 × 21,016.13
4. Step 4: Simplify right side
   9,861.75x = 441,677,510.02
5. Step 5: Solve for x
   x = 441,677,510.02/9,861.75
6. Step 6: Final answer
   x = 44,786.93