Finding the Third Proportional to 993,510 and 2,211,858

Step by Step Solution

1. Step 1: Write the proportion equation
   993,510 : 2,211,858 = 2,211,858 : x
2. Step 2: Convert to fraction form
   993,510/2,211,858 = 2,211,858/x
3. Step 3: Cross multiply
   993,510x = 2,211,858 × 2,211,858
4. Step 4: Simplify right side
   993,510x = 4,892,315,812,164
5. Step 5: Solve for x
   x = 4,892,315,812,164/993,510
6. Step 6: Final answer
   x = 4,924,274.35