Finding the Third Proportional to 4,660,386 and 9,968,464

Step by Step Solution

1. Step 1: Write the proportion equation
   4,660,386 : 9,968,464 = 9,968,464 : x
2. Step 2: Convert to fraction form
   4,660,386/9,968,464 = 9,968,464/x
3. Step 3: Cross multiply
   4,660,386x = 9,968,464 × 9,968,464
4. Step 4: Simplify right side
   4,660,386x = 99,370,274,519,296
5. Step 5: Solve for x
   x = 99,370,274,519,296/4,660,386
6. Step 6: Final answer
   x = 21,322,327.06