Finding the Third Proportional to 21,322,985 and 30,389,533

Step by Step Solution

1. Step 1: Write the proportion equation
   21,322,985 : 30,389,533 = 30,389,533 : x
2. Step 2: Convert to fraction form
   21,322,985/30,389,533 = 30,389,533/x
3. Step 3: Cross multiply
   21,322,985x = 30,389,533 × 30,389,533
4. Step 4: Simplify right side
   21,322,985x = 923,523,715,958,089
5. Step 5: Solve for x
   x = 923,523,715,958,089/21,322,985
6. Step 6: Final answer
   x = 43,311,183.49