Finding the Third Proportional to 16,245,038 and 21,563,823

Step by Step Solution

1. Step 1: Write the proportion equation
   16,245,038 : 21,563,823 = 21,563,823 : x
2. Step 2: Convert to fraction form
   16,245,038/21,563,823 = 21,563,823/x
3. Step 3: Cross multiply
   16,245,038x = 21,563,823 × 21,563,823
4. Step 4: Simplify right side
   16,245,038x = 464,998,462,375,329
5. Step 5: Solve for x
   x = 464,998,462,375,329/16,245,038
6. Step 6: Final answer
   x = 28,624,030.45