Finding the Third Proportional to 43,289 and 90,042

Step by Step Solution

1. Step 1: Write the proportion equation
   43,289 : 90,042 = 90,042 : x
2. Step 2: Convert to fraction form
   43,289/90,042 = 90,042/x
3. Step 3: Cross multiply
   43,289x = 90,042 × 90,042
4. Step 4: Simplify right side
   43,289x = 8,107,561,764
5. Step 5: Solve for x
   x = 8,107,561,764/43,289
6. Step 6: Final answer
   x = 187,289.19