Finding the Third Proportional to 162,391.50 and 255,099

Step by Step Solution

1. Step 1: Write the proportion equation
   162,391.50 : 255,099 = 255,099 : x
2. Step 2: Convert to fraction form
   162,391.50/255,099 = 255,099/x
3. Step 3: Cross multiply
   162,391.50x = 255,099 × 255,099
4. Step 4: Simplify right side
   162,391.50x = 65,075,499,801
5. Step 5: Solve for x
   x = 65,075,499,801/162,391.50
6. Step 6: Final answer
   x = 400,732.18