Finding the Third Proportional to 12,768,245 and 17,916,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768,245 : 17,916,375.50 = 17,916,375.50 : x
2. Step 2: Convert to fraction form
   12,768,245/17,916,375.50 = 17,916,375.50/x
3. Step 3: Cross multiply
   12,768,245x = 17,916,375.50 × 17,916,375.50
4. Step 4: Simplify right side
   12,768,245x = 320,996,511,057,000.25
5. Step 5: Solve for x
   x = 320,996,511,057,000.25/12,768,245
6. Step 6: Final answer
   x = 25,140,221.78