Finding the Third Proportional to 2,556,228 and 5,471,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,228 : 5,471,488.50 = 5,471,488.50 : x
2. Step 2: Convert to fraction form
   2,556,228/5,471,488.50 = 5,471,488.50/x
3. Step 3: Cross multiply
   2,556,228x = 5,471,488.50 × 5,471,488.50
4. Step 4: Simplify right side
   2,556,228x = 29,937,186,405,632.25
5. Step 5: Solve for x
   x = 29,937,186,405,632.25/2,556,228
6. Step 6: Final answer
   x = 11,711,469.56