Finding the Third Proportional to 9,129.50 and 19,436.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,129.50 : 19,436.06 = 19,436.06 : x
2. Step 2: Convert to fraction form
   9,129.50/19,436.06 = 19,436.06/x
3. Step 3: Cross multiply
   9,129.50x = 19,436.06 × 19,436.06
4. Step 4: Simplify right side
   9,129.50x = 377,760,525.50
5. Step 5: Solve for x
   x = 377,760,525.50/9,129.50
6. Step 6: Final answer
   x = 41,378.01