Finding the Third Proportional to 31,185 and 43,920

Step by Step Solution

1. Step 1: Write the proportion equation
   31,185 : 43,920 = 43,920 : x
2. Step 2: Convert to fraction form
   31,185/43,920 = 43,920/x
3. Step 3: Cross multiply
   31,185x = 43,920 × 43,920
4. Step 4: Simplify right side
   31,185x = 1,928,966,400
5. Step 5: Solve for x
   x = 1,928,966,400/31,185
6. Step 6: Final answer
   x = 61,855.58