Finding the Third Proportional to 993,900 and 2,145,168

Step by Step Solution

1. Step 1: Write the proportion equation
   993,900 : 2,145,168 = 2,145,168 : x
2. Step 2: Convert to fraction form
   993,900/2,145,168 = 2,145,168/x
3. Step 3: Cross multiply
   993,900x = 2,145,168 × 2,145,168
4. Step 4: Simplify right side
   993,900x = 4,601,745,748,224
5. Step 5: Solve for x
   x = 4,601,745,748,224/993,900
6. Step 6: Final answer
   x = 4,629,988.68