Finding the Third Proportional to 4,627,397 and 9,965,323

Step by Step Solution

1. Step 1: Write the proportion equation
   4,627,397 : 9,965,323 = 9,965,323 : x
2. Step 2: Convert to fraction form
   4,627,397/9,965,323 = 9,965,323/x
3. Step 3: Cross multiply
   4,627,397x = 9,965,323 × 9,965,323
4. Step 4: Simplify right side
   4,627,397x = 99,307,662,494,329
5. Step 5: Solve for x
   x = 99,307,662,494,329/4,627,397
6. Step 6: Final answer
   x = 21,460,804.53