Finding the Third Proportional to 45,760 and 70,920

Step by Step Solution

1. Step 1: Write the proportion equation
   45,760 : 70,920 = 70,920 : x
2. Step 2: Convert to fraction form
   45,760/70,920 = 70,920/x
3. Step 3: Cross multiply
   45,760x = 70,920 × 70,920
4. Step 4: Simplify right side
   45,760x = 5,029,646,400
5. Step 5: Solve for x
   x = 5,029,646,400/45,760
6. Step 6: Final answer
   x = 109,913.60