Finding the Third Proportional to 4,438,830 and 9,699,540

Step by Step Solution

1. Step 1: Write the proportion equation
   4,438,830 : 9,699,540 = 9,699,540 : x
2. Step 2: Convert to fraction form
   4,438,830/9,699,540 = 9,699,540/x
3. Step 3: Cross multiply
   4,438,830x = 9,699,540 × 9,699,540
4. Step 4: Simplify right side
   4,438,830x = 94,081,076,211,600
5. Step 5: Solve for x
   x = 94,081,076,211,600/4,438,830
6. Step 6: Final answer
   x = 21,195,016.75