Finding the Third Proportional to 72,481.50 and 102,069.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,481.50 : 102,069.50 = 102,069.50 : x
2. Step 2: Convert to fraction form
   72,481.50/102,069.50 = 102,069.50/x
3. Step 3: Cross multiply
   72,481.50x = 102,069.50 × 102,069.50
4. Step 4: Simplify right side
   72,481.50x = 10,418,182,830.25
5. Step 5: Solve for x
   x = 10,418,182,830.25/72,481.50
6. Step 6: Final answer
   x = 143,735.75