Finding the Third Proportional to 9,627,628 and 21,144,920

Step by Step Solution

1. Step 1: Write the proportion equation
   9,627,628 : 21,144,920 = 21,144,920 : x
2. Step 2: Convert to fraction form
   9,627,628/21,144,920 = 21,144,920/x
3. Step 3: Cross multiply
   9,627,628x = 21,144,920 × 21,144,920
4. Step 4: Simplify right side
   9,627,628x = 447,107,641,806,400
5. Step 5: Solve for x
   x = 447,107,641,806,400/9,627,628
6. Step 6: Final answer
   x = 46,440,062.06