Finding the Third Proportional to 18,118.69 and 35,872.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,118.69 : 35,872.88 = 35,872.88 : x
2. Step 2: Convert to fraction form
   18,118.69/35,872.88 = 35,872.88/x
3. Step 3: Cross multiply
   18,118.69x = 35,872.88 × 35,872.88
4. Step 4: Simplify right side
   18,118.69x = 1,286,863,160.77
5. Step 5: Solve for x
   x = 1,286,863,160.77/18,118.69
6. Step 6: Final answer
   x = 71,024.08