Finding the Third Proportional to 359,688 and 756,384

Step by Step Solution

1. Step 1: Write the proportion equation
   359,688 : 756,384 = 756,384 : x
2. Step 2: Convert to fraction form
   359,688/756,384 = 756,384/x
3. Step 3: Cross multiply
   359,688x = 756,384 × 756,384
4. Step 4: Simplify right side
   359,688x = 572,116,755,456
5. Step 5: Solve for x
   x = 572,116,755,456/359,688
6. Step 6: Final answer
   x = 1,590,591.72