Finding the Third Proportional to 18,434 and 43,290

Step by Step Solution

1. Step 1: Write the proportion equation
   18,434 : 43,290 = 43,290 : x
2. Step 2: Convert to fraction form
   18,434/43,290 = 43,290/x
3. Step 3: Cross multiply
   18,434x = 43,290 × 43,290
4. Step 4: Simplify right side
   18,434x = 1,874,024,100
5. Step 5: Solve for x
   x = 1,874,024,100/18,434
6. Step 6: Final answer
   x = 101,661.28