Finding the Third Proportional to 2,159,886 and 4,640,301

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,886 : 4,640,301 = 4,640,301 : x
2. Step 2: Convert to fraction form
   2,159,886/4,640,301 = 4,640,301/x
3. Step 3: Cross multiply
   2,159,886x = 4,640,301 × 4,640,301
4. Step 4: Simplify right side
   2,159,886x = 21,532,393,370,601
5. Step 5: Solve for x
   x = 21,532,393,370,601/2,159,886
6. Step 6: Final answer
   x = 9,969,226.79