Finding the Third Proportional to 43,393 and 90,243

Step by Step Solution

1. Step 1: Write the proportion equation
   43,393 : 90,243 = 90,243 : x
2. Step 2: Convert to fraction form
   43,393/90,243 = 90,243/x
3. Step 3: Cross multiply
   43,393x = 90,243 × 90,243
4. Step 4: Simplify right side
   43,393x = 8,143,799,049
5. Step 5: Solve for x
   x = 8,143,799,049/43,393
6. Step 6: Final answer
   x = 187,675.41