Finding the Third Proportional to 349,500 and 758,328

Step by Step Solution

1. Step 1: Write the proportion equation
   349,500 : 758,328 = 758,328 : x
2. Step 2: Convert to fraction form
   349,500/758,328 = 758,328/x
3. Step 3: Cross multiply
   349,500x = 758,328 × 758,328
4. Step 4: Simplify right side
   349,500x = 575,061,355,584
5. Step 5: Solve for x
   x = 575,061,355,584/349,500
6. Step 6: Final answer
   x = 1,645,382.99