Finding the Third Proportional to 2,139,360 and 4,698,570

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,360 : 4,698,570 = 4,698,570 : x
2. Step 2: Convert to fraction form
   2,139,360/4,698,570 = 4,698,570/x
3. Step 3: Cross multiply
   2,139,360x = 4,698,570 × 4,698,570
4. Step 4: Simplify right side
   2,139,360x = 22,076,560,044,900
5. Step 5: Solve for x
   x = 22,076,560,044,900/2,139,360
6. Step 6: Final answer
   x = 10,319,235.68