Finding the Third Proportional to 2,145,692 and 4,639,846

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,692 : 4,639,846 = 4,639,846 : x
2. Step 2: Convert to fraction form
   2,145,692/4,639,846 = 4,639,846/x
3. Step 3: Cross multiply
   2,145,692x = 4,639,846 × 4,639,846
4. Step 4: Simplify right side
   2,145,692x = 21,528,170,903,716
5. Step 5: Solve for x
   x = 21,528,170,903,716/2,145,692
6. Step 6: Final answer
   x = 10,033,206.49