Finding the Third Proportional to 2,491,260 and 5,181,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491,260 : 5,181,290.50 = 5,181,290.50 : x
2. Step 2: Convert to fraction form
   2,491,260/5,181,290.50 = 5,181,290.50/x
3. Step 3: Cross multiply
   2,491,260x = 5,181,290.50 × 5,181,290.50
4. Step 4: Simplify right side
   2,491,260x = 26,845,771,245,390.25
5. Step 5: Solve for x
   x = 26,845,771,245,390.25/2,491,260
6. Step 6: Final answer
   x = 10,775,981.33