Finding the Third Proportional to 999,508 and 2,185,424

Step by Step Solution

1. Step 1: Write the proportion equation
   999,508 : 2,185,424 = 2,185,424 : x
2. Step 2: Convert to fraction form
   999,508/2,185,424 = 2,185,424/x
3. Step 3: Cross multiply
   999,508x = 2,185,424 × 2,185,424
4. Step 4: Simplify right side
   999,508x = 4,776,078,059,776
5. Step 5: Solve for x
   x = 4,776,078,059,776/999,508
6. Step 6: Final answer
   x = 4,778,429.05