Finding the Third Proportional to 4,422,610 and 9,645,668

Step by Step Solution

1. Step 1: Write the proportion equation
   4,422,610 : 9,645,668 = 9,645,668 : x
2. Step 2: Convert to fraction form
   4,422,610/9,645,668 = 9,645,668/x
3. Step 3: Cross multiply
   4,422,610x = 9,645,668 × 9,645,668
4. Step 4: Simplify right side
   4,422,610x = 93,038,911,166,224
5. Step 5: Solve for x
   x = 93,038,911,166,224/4,422,610
6. Step 6: Final answer
   x = 21,037,105.05