Finding the Third Proportional to 4,550,308 and 9,660,488

Step by Step Solution

1. Step 1: Write the proportion equation
   4,550,308 : 9,660,488 = 9,660,488 : x
2. Step 2: Convert to fraction form
   4,550,308/9,660,488 = 9,660,488/x
3. Step 3: Cross multiply
   4,550,308x = 9,660,488 × 9,660,488
4. Step 4: Simplify right side
   4,550,308x = 93,325,028,398,144
5. Step 5: Solve for x
   x = 93,325,028,398,144/4,550,308
6. Step 6: Final answer
   x = 20,509,606.91