Finding the Third Proportional to 10,235.25 and 21,557.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,235.25 : 21,557.25 = 21,557.25 : x
2. Step 2: Convert to fraction form
   10,235.25/21,557.25 = 21,557.25/x
3. Step 3: Cross multiply
   10,235.25x = 21,557.25 × 21,557.25
4. Step 4: Simplify right side
   10,235.25x = 464,715,027.56
5. Step 5: Solve for x
   x = 464,715,027.56/10,235.25
6. Step 6: Final answer
   x = 45,403.39