Finding the Third Proportional to 2,139,345 and 4,698,540

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,345 : 4,698,540 = 4,698,540 : x
2. Step 2: Convert to fraction form
   2,139,345/4,698,540 = 4,698,540/x
3. Step 3: Cross multiply
   2,139,345x = 4,698,540 × 4,698,540
4. Step 4: Simplify right side
   2,139,345x = 22,076,278,131,600
5. Step 5: Solve for x
   x = 22,076,278,131,600/2,139,345
6. Step 6: Final answer
   x = 10,319,176.26