Finding the Third Proportional to 2,155,947 and 4,694,382

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,947 : 4,694,382 = 4,694,382 : x
2. Step 2: Convert to fraction form
   2,155,947/4,694,382 = 4,694,382/x
3. Step 3: Cross multiply
   2,155,947x = 4,694,382 × 4,694,382
4. Step 4: Simplify right side
   2,155,947x = 22,037,222,361,924
5. Step 5: Solve for x
   x = 22,037,222,361,924/2,155,947
6. Step 6: Final answer
   x = 10,221,597.45