Finding the Third Proportional to 38,404 and 55,920

Step by Step Solution

1. Step 1: Write the proportion equation
   38,404 : 55,920 = 55,920 : x
2. Step 2: Convert to fraction form
   38,404/55,920 = 55,920/x
3. Step 3: Cross multiply
   38,404x = 55,920 × 55,920
4. Step 4: Simplify right side
   38,404x = 3,127,046,400
5. Step 5: Solve for x
   x = 3,127,046,400/38,404
6. Step 6: Final answer
   x = 81,425.02