Finding the Third Proportional to 4,564,378 and 9,638,046

Step by Step Solution

1. Step 1: Write the proportion equation
   4,564,378 : 9,638,046 = 9,638,046 : x
2. Step 2: Convert to fraction form
   4,564,378/9,638,046 = 9,638,046/x
3. Step 3: Cross multiply
   4,564,378x = 9,638,046 × 9,638,046
4. Step 4: Simplify right side
   4,564,378x = 92,891,930,698,116
5. Step 5: Solve for x
   x = 92,891,930,698,116/4,564,378
6. Step 6: Final answer
   x = 20,351,498.21