Finding the Third Proportional to 9,627,072 and 21,143,432

Step by Step Solution

1. Step 1: Write the proportion equation
   9,627,072 : 21,143,432 = 21,143,432 : x
2. Step 2: Convert to fraction form
   9,627,072/21,143,432 = 21,143,432/x
3. Step 3: Cross multiply
   9,627,072x = 21,143,432 × 21,143,432
4. Step 4: Simplify right side
   9,627,072x = 447,044,716,738,624
5. Step 5: Solve for x
   x = 447,044,716,738,624/9,627,072
6. Step 6: Final answer
   x = 46,436,207.89