Finding the Third Proportional to 30,180 and 45,920

Step by Step Solution

1. Step 1: Write the proportion equation
   30,180 : 45,920 = 45,920 : x
2. Step 2: Convert to fraction form
   30,180/45,920 = 45,920/x
3. Step 3: Cross multiply
   30,180x = 45,920 × 45,920
4. Step 4: Simplify right side
   30,180x = 2,108,646,400
5. Step 5: Solve for x
   x = 2,108,646,400/30,180
6. Step 6: Final answer
   x = 69,869.00