Finding the Third Proportional to 120,189.56 and 262,704.56

Step by Step Solution

1. Step 1: Write the proportion equation
   120,189.56 : 262,704.56 = 262,704.56 : x
2. Step 2: Convert to fraction form
   120,189.56/262,704.56 = 262,704.56/x
3. Step 3: Cross multiply
   120,189.56x = 262,704.56 × 262,704.56
4. Step 4: Simplify right side
   120,189.56x = 69,013,687,158.32
5. Step 5: Solve for x
   x = 69,013,687,158.32/120,189.56
6. Step 6: Final answer
   x = 574,206.99