Finding the Third Proportional to 10,145.25 and 20,904.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,145.25 : 20,904.75 = 20,904.75 : x
2. Step 2: Convert to fraction form
   10,145.25/20,904.75 = 20,904.75/x
3. Step 3: Cross multiply
   10,145.25x = 20,904.75 × 20,904.75
4. Step 4: Simplify right side
   10,145.25x = 437,008,572.56
5. Step 5: Solve for x
   x = 437,008,572.56/10,145.25
6. Step 6: Final answer
   x = 43,075.19