Finding the Third Proportional to 349,357.50 and 748,512

Step by Step Solution

1. Step 1: Write the proportion equation
   349,357.50 : 748,512 = 748,512 : x
2. Step 2: Convert to fraction form
   349,357.50/748,512 = 748,512/x
3. Step 3: Cross multiply
   349,357.50x = 748,512 × 748,512
4. Step 4: Simplify right side
   349,357.50x = 560,270,214,144
5. Step 5: Solve for x
   x = 560,270,214,144/349,357.50
6. Step 6: Final answer
   x = 1,603,716.00