Finding the Third Proportional to 45,878 and 70,540

Step by Step Solution

1. Step 1: Write the proportion equation
   45,878 : 70,540 = 70,540 : x
2. Step 2: Convert to fraction form
   45,878/70,540 = 70,540/x
3. Step 3: Cross multiply
   45,878x = 70,540 × 70,540
4. Step 4: Simplify right side
   45,878x = 4,975,891,600
5. Step 5: Solve for x
   x = 4,975,891,600/45,878
6. Step 6: Final answer
   x = 108,459.21