Finding the Third Proportional to 11,178,999 and 16,824,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178,999 : 16,824,469.50 = 16,824,469.50 : x
2. Step 2: Convert to fraction form
   11,178,999/16,824,469.50 = 16,824,469.50/x
3. Step 3: Cross multiply
   11,178,999x = 16,824,469.50 × 16,824,469.50
4. Step 4: Simplify right side
   11,178,999x = 283,062,773,956,430.25
5. Step 5: Solve for x
   x = 283,062,773,956,430.25/11,178,999
6. Step 6: Final answer
   x = 25,320,940.99