Finding the Third Proportional to 9,764,144 and 21,264,128

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764,144 : 21,264,128 = 21,264,128 : x
2. Step 2: Convert to fraction form
   9,764,144/21,264,128 = 21,264,128/x
3. Step 3: Cross multiply
   9,764,144x = 21,264,128 × 21,264,128
4. Step 4: Simplify right side
   9,764,144x = 452,163,139,600,384
5. Step 5: Solve for x
   x = 452,163,139,600,384/9,764,144
6. Step 6: Final answer
   x = 46,308,528.39