Finding the Third Proportional to 4,485,924 and 9,729,036

Step by Step Solution

1. Step 1: Write the proportion equation
   4,485,924 : 9,729,036 = 9,729,036 : x
2. Step 2: Convert to fraction form
   4,485,924/9,729,036 = 9,729,036/x
3. Step 3: Cross multiply
   4,485,924x = 9,729,036 × 9,729,036
4. Step 4: Simplify right side
   4,485,924x = 94,654,141,489,296
5. Step 5: Solve for x
   x = 94,654,141,489,296/4,485,924
6. Step 6: Final answer
   x = 21,100,255.26