Finding the Third Proportional to 43,578.42 and 67,338.21

Step by Step Solution

1. Step 1: Write the proportion equation
   43,578.42 : 67,338.21 = 67,338.21 : x
2. Step 2: Convert to fraction form
   43,578.42/67,338.21 = 67,338.21/x
3. Step 3: Cross multiply
   43,578.42x = 67,338.21 × 67,338.21
4. Step 4: Simplify right side
   43,578.42x = 4,534,434,652.26
5. Step 5: Solve for x
   x = 4,534,434,652.26/43,578.42
6. Step 6: Final answer
   x = 104,052.29