Finding the Third Proportional to 70,920 and 105,878

Step by Step Solution

1. Step 1: Write the proportion equation
   70,920 : 105,878 = 105,878 : x
2. Step 2: Convert to fraction form
   70,920/105,878 = 105,878/x
3. Step 3: Cross multiply
   70,920x = 105,878 × 105,878
4. Step 4: Simplify right side
   70,920x = 11,210,150,884
5. Step 5: Solve for x
   x = 11,210,150,884/70,920
6. Step 6: Final answer
   x = 158,067.55