Finding the Third Proportional to 9,971,022 and 21,689,064

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971,022 : 21,689,064 = 21,689,064 : x
2. Step 2: Convert to fraction form
   9,971,022/21,689,064 = 21,689,064/x
3. Step 3: Cross multiply
   9,971,022x = 21,689,064 × 21,689,064
4. Step 4: Simplify right side
   9,971,022x = 470,415,497,196,096
5. Step 5: Solve for x
   x = 470,415,497,196,096/9,971,022
6. Step 6: Final answer
   x = 47,178,262.89