Finding the Third Proportional to 1,922,978 and 2,989,353

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922,978 : 2,989,353 = 2,989,353 : x
2. Step 2: Convert to fraction form
   1,922,978/2,989,353 = 2,989,353/x
3. Step 3: Cross multiply
   1,922,978x = 2,989,353 × 2,989,353
4. Step 4: Simplify right side
   1,922,978x = 8,936,231,358,609
5. Step 5: Solve for x
   x = 8,936,231,358,609/1,922,978
6. Step 6: Final answer
   x = 4,647,079.35