Finding the Third Proportional to 70,078.50 and 108,809.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,078.50 : 108,809.25 = 108,809.25 : x
2. Step 2: Convert to fraction form
   70,078.50/108,809.25 = 108,809.25/x
3. Step 3: Cross multiply
   70,078.50x = 108,809.25 × 108,809.25
4. Step 4: Simplify right side
   70,078.50x = 11,839,452,885.56
5. Step 5: Solve for x
   x = 11,839,452,885.56/70,078.50
6. Step 6: Final answer
   x = 168,945.58