Finding the Third Proportional to 34,399.88 and 70,257.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,399.88 : 70,257.75 = 70,257.75 : x
2. Step 2: Convert to fraction form
   34,399.88/70,257.75 = 70,257.75/x
3. Step 3: Cross multiply
   34,399.88x = 70,257.75 × 70,257.75
4. Step 4: Simplify right side
   34,399.88x = 4,936,151,435.06
5. Step 5: Solve for x
   x = 4,936,151,435.06/34,399.88
6. Step 6: Final answer
   x = 143,493.30