Finding the Third Proportional to 161,074.50 and 342,885

Step by Step Solution

1. Step 1: Write the proportion equation
   161,074.50 : 342,885 = 342,885 : x
2. Step 2: Convert to fraction form
   161,074.50/342,885 = 342,885/x
3. Step 3: Cross multiply
   161,074.50x = 342,885 × 342,885
4. Step 4: Simplify right side
   161,074.50x = 117,570,123,225
5. Step 5: Solve for x
   x = 117,570,123,225/161,074.50
6. Step 6: Final answer
   x = 729,911.46