Finding the Third Proportional to 10,993.50 and 21,436.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.50 : 21,436.88 = 21,436.88 : x
2. Step 2: Convert to fraction form
   10,993.50/21,436.88 = 21,436.88/x
3. Step 3: Cross multiply
   10,993.50x = 21,436.88 × 21,436.88
4. Step 4: Simplify right side
   10,993.50x = 459,539,609.77
5. Step 5: Solve for x
   x = 459,539,609.77/10,993.50
6. Step 6: Final answer
   x = 41,801.03