Finding the Third Proportional to 70,685 and 109,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,685 : 109,306.50 = 109,306.50 : x
2. Step 2: Convert to fraction form
   70,685/109,306.50 = 109,306.50/x
3. Step 3: Cross multiply
   70,685x = 109,306.50 × 109,306.50
4. Step 4: Simplify right side
   70,685x = 11,947,910,942.25
5. Step 5: Solve for x
   x = 11,947,910,942.25/70,685
6. Step 6: Final answer
   x = 169,030.36