Finding the Third Proportional to 2,153,802 and 4,698,780

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,802 : 4,698,780 = 4,698,780 : x
2. Step 2: Convert to fraction form
   2,153,802/4,698,780 = 4,698,780/x
3. Step 3: Cross multiply
   2,153,802x = 4,698,780 × 4,698,780
4. Step 4: Simplify right side
   2,153,802x = 22,078,533,488,400
5. Step 5: Solve for x
   x = 22,078,533,488,400/2,153,802
6. Step 6: Final answer
   x = 10,250,957.84