Finding the Third Proportional to 72,579 and 111,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,579 : 111,028.50 = 111,028.50 : x
2. Step 2: Convert to fraction form
   72,579/111,028.50 = 111,028.50/x
3. Step 3: Cross multiply
   72,579x = 111,028.50 × 111,028.50
4. Step 4: Simplify right side
   72,579x = 12,327,327,812.25
5. Step 5: Solve for x
   x = 12,327,327,812.25/72,579
6. Step 6: Final answer
   x = 169,847.03