Finding the Third Proportional to 63,916 and 89,388

Step by Step Solution

1. Step 1: Write the proportion equation
   63,916 : 89,388 = 89,388 : x
2. Step 2: Convert to fraction form
   63,916/89,388 = 89,388/x
3. Step 3: Cross multiply
   63,916x = 89,388 × 89,388
4. Step 4: Simplify right side
   63,916x = 7,990,214,544
5. Step 5: Solve for x
   x = 7,990,214,544/63,916
6. Step 6: Final answer
   x = 125,011.18