Finding the Third Proportional to 267,662.50 and 394,099

Step by Step Solution

1. Step 1: Write the proportion equation
   267,662.50 : 394,099 = 394,099 : x
2. Step 2: Convert to fraction form
   267,662.50/394,099 = 394,099/x
3. Step 3: Cross multiply
   267,662.50x = 394,099 × 394,099
4. Step 4: Simplify right side
   267,662.50x = 155,314,021,801
5. Step 5: Solve for x
   x = 155,314,021,801/267,662.50
6. Step 6: Final answer
   x = 580,260.67