Finding the Third Proportional to 4,636,021 and 7,091,812

Step by Step Solution

1. Step 1: Write the proportion equation
   4,636,021 : 7,091,812 = 7,091,812 : x
2. Step 2: Convert to fraction form
   4,636,021/7,091,812 = 7,091,812/x
3. Step 3: Cross multiply
   4,636,021x = 7,091,812 × 7,091,812
4. Step 4: Simplify right side
   4,636,021x = 50,293,797,443,344
5. Step 5: Solve for x
   x = 50,293,797,443,344/4,636,021
6. Step 6: Final answer
   x = 10,848,483.53