Finding the Third Proportional to 1,921,876 and 2,947,968

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,876 : 2,947,968 = 2,947,968 : x
2. Step 2: Convert to fraction form
   1,921,876/2,947,968 = 2,947,968/x
3. Step 3: Cross multiply
   1,921,876x = 2,947,968 × 2,947,968
4. Step 4: Simplify right side
   1,921,876x = 8,690,515,329,024
5. Step 5: Solve for x
   x = 8,690,515,329,024/1,921,876
6. Step 6: Final answer
   x = 4,521,891.80