Finding the Third Proportional to 786,960 and 1,688,616

Step by Step Solution

1. Step 1: Write the proportion equation
   786,960 : 1,688,616 = 1,688,616 : x
2. Step 2: Convert to fraction form
   786,960/1,688,616 = 1,688,616/x
3. Step 3: Cross multiply
   786,960x = 1,688,616 × 1,688,616
4. Step 4: Simplify right side
   786,960x = 2,851,423,995,456
5. Step 5: Solve for x
   x = 2,851,423,995,456/786,960
6. Step 6: Final answer
   x = 3,623,340.44