Finding the Third Proportional to 684,680 and 1,477,616

Step by Step Solution

1. Step 1: Write the proportion equation
   684,680 : 1,477,616 = 1,477,616 : x
2. Step 2: Convert to fraction form
   684,680/1,477,616 = 1,477,616/x
3. Step 3: Cross multiply
   684,680x = 1,477,616 × 1,477,616
4. Step 4: Simplify right side
   684,680x = 2,183,349,043,456
5. Step 5: Solve for x
   x = 2,183,349,043,456/684,680
6. Step 6: Final answer
   x = 3,188,860.55