Finding the Third Proportional to 86,057 and 123,947

Step by Step Solution

1. Step 1: Write the proportion equation
   86,057 : 123,947 = 123,947 : x
2. Step 2: Convert to fraction form
   86,057/123,947 = 123,947/x
3. Step 3: Cross multiply
   86,057x = 123,947 × 123,947
4. Step 4: Simplify right side
   86,057x = 15,362,858,809
5. Step 5: Solve for x
   x = 15,362,858,809/86,057
6. Step 6: Final answer
   x = 178,519.57