Finding the Third Proportional to 120,865.50 and 262,494

Step by Step Solution

1. Step 1: Write the proportion equation
   120,865.50 : 262,494 = 262,494 : x
2. Step 2: Convert to fraction form
   120,865.50/262,494 = 262,494/x
3. Step 3: Cross multiply
   120,865.50x = 262,494 × 262,494
4. Step 4: Simplify right side
   120,865.50x = 68,903,100,036
5. Step 5: Solve for x
   x = 68,903,100,036/120,865.50
6. Step 6: Final answer
   x = 570,080.79