Finding the Third Proportional to 21,568,992.50 and 30,338,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,568,992.50 : 30,338,431.50 = 30,338,431.50 : x
2. Step 2: Convert to fraction form
   21,568,992.50/30,338,431.50 = 30,338,431.50/x
3. Step 3: Cross multiply
   21,568,992.50x = 30,338,431.50 × 30,338,431.50
4. Step 4: Simplify right side
   21,568,992.50x = 920,420,425,880,192.25
5. Step 5: Solve for x
   x = 920,420,425,880,192.25/21,568,992.50
6. Step 6: Final answer
   x = 42,673,315.68