Finding the Third Proportional to 349,258.50 and 533,912

Step by Step Solution

1. Step 1: Write the proportion equation
   349,258.50 : 533,912 = 533,912 : x
2. Step 2: Convert to fraction form
   349,258.50/533,912 = 533,912/x
3. Step 3: Cross multiply
   349,258.50x = 533,912 × 533,912
4. Step 4: Simplify right side
   349,258.50x = 285,062,023,744
5. Step 5: Solve for x
   x = 285,062,023,744/349,258.50
6. Step 6: Final answer
   x = 816,192.09