Finding the Third Proportional to 999,494 and 2,185,390

Step by Step Solution

1. Step 1: Write the proportion equation
   999,494 : 2,185,390 = 2,185,390 : x
2. Step 2: Convert to fraction form
   999,494/2,185,390 = 2,185,390/x
3. Step 3: Cross multiply
   999,494x = 2,185,390 × 2,185,390
4. Step 4: Simplify right side
   999,494x = 4,775,929,452,100
5. Step 5: Solve for x
   x = 4,775,929,452,100/999,494
6. Step 6: Final answer
   x = 4,778,347.30