Finding the Third Proportional to 10,017.75 and 21,425.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,017.75 : 21,425.25 = 21,425.25 : x
2. Step 2: Convert to fraction form
   10,017.75/21,425.25 = 21,425.25/x
3. Step 3: Cross multiply
   10,017.75x = 21,425.25 × 21,425.25
4. Step 4: Simplify right side
   10,017.75x = 459,041,337.56
5. Step 5: Solve for x
   x = 459,041,337.56/10,017.75
6. Step 6: Final answer
   x = 45,822.80