Finding the Third Proportional to 70,115 and 105,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,115 : 105,905.50 = 105,905.50 : x
2. Step 2: Convert to fraction form
   70,115/105,905.50 = 105,905.50/x
3. Step 3: Cross multiply
   70,115x = 105,905.50 × 105,905.50
4. Step 4: Simplify right side
   70,115x = 11,215,974,930.25
5. Step 5: Solve for x
   x = 11,215,974,930.25/70,115
6. Step 6: Final answer
   x = 159,965.41