Finding the Third Proportional to 2,144,680 and 4,618,868

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144,680 : 4,618,868 = 4,618,868 : x
2. Step 2: Convert to fraction form
   2,144,680/4,618,868 = 4,618,868/x
3. Step 3: Cross multiply
   2,144,680x = 4,618,868 × 4,618,868
4. Step 4: Simplify right side
   2,144,680x = 21,333,941,601,424
5. Step 5: Solve for x
   x = 21,333,941,601,424/2,144,680
6. Step 6: Final answer
   x = 9,947,377.51