Finding the Third Proportional to 70,519.50 and 108,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,519.50 : 108,013.50 = 108,013.50 : x
2. Step 2: Convert to fraction form
   70,519.50/108,013.50 = 108,013.50/x
3. Step 3: Cross multiply
   70,519.50x = 108,013.50 × 108,013.50
4. Step 4: Simplify right side
   70,519.50x = 11,666,916,182.25
5. Step 5: Solve for x
   x = 11,666,916,182.25/70,519.50
6. Step 6: Final answer
   x = 165,442.41