Finding the Third Proportional to 31,928 and 69,896

Step by Step Solution

1. Step 1: Write the proportion equation
   31,928 : 69,896 = 69,896 : x
2. Step 2: Convert to fraction form
   31,928/69,896 = 69,896/x
3. Step 3: Cross multiply
   31,928x = 69,896 × 69,896
4. Step 4: Simplify right side
   31,928x = 4,885,450,816
5. Step 5: Solve for x
   x = 4,885,450,816/31,928
6. Step 6: Final answer
   x = 153,014.62