Finding the Third Proportional to 40,287 and 88,629

Step by Step Solution

1. Step 1: Write the proportion equation
   40,287 : 88,629 = 88,629 : x
2. Step 2: Convert to fraction form
   40,287/88,629 = 88,629/x
3. Step 3: Cross multiply
   40,287x = 88,629 × 88,629
4. Step 4: Simplify right side
   40,287x = 7,855,099,641
5. Step 5: Solve for x
   x = 7,855,099,641/40,287
6. Step 6: Final answer
   x = 194,978.52