Finding the Third Proportional to 11,800,768.50 and 17,809,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,800,768.50 : 17,809,591.50 = 17,809,591.50 : x
2. Step 2: Convert to fraction form
   11,800,768.50/17,809,591.50 = 17,809,591.50/x
3. Step 3: Cross multiply
   11,800,768.50x = 17,809,591.50 × 17,809,591.50
4. Step 4: Simplify right side
   11,800,768.50x = 317,181,549,396,872.25
5. Step 5: Solve for x
   x = 317,181,549,396,872.25/11,800,768.50
6. Step 6: Final answer
   x = 26,878,041.83