Finding the Third Proportional to 999,216 and 2,035,440

Step by Step Solution

1. Step 1: Write the proportion equation
   999,216 : 2,035,440 = 2,035,440 : x
2. Step 2: Convert to fraction form
   999,216/2,035,440 = 2,035,440/x
3. Step 3: Cross multiply
   999,216x = 2,035,440 × 2,035,440
4. Step 4: Simplify right side
   999,216x = 4,143,015,993,600
5. Step 5: Solve for x
   x = 4,143,015,993,600/999,216
6. Step 6: Final answer
   x = 4,146,266.67