Finding the Third Proportional to 2,510,716.50 and 5,490,909

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510,716.50 : 5,490,909 = 5,490,909 : x
2. Step 2: Convert to fraction form
   2,510,716.50/5,490,909 = 5,490,909/x
3. Step 3: Cross multiply
   2,510,716.50x = 5,490,909 × 5,490,909
4. Step 4: Simplify right side
   2,510,716.50x = 30,150,081,646,281
5. Step 5: Solve for x
   x = 30,150,081,646,281/2,510,716.50
6. Step 6: Final answer
   x = 12,008,556.78