Finding the Third Proportional to 2,549,556 and 5,478,030

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549,556 : 5,478,030 = 5,478,030 : x
2. Step 2: Convert to fraction form
   2,549,556/5,478,030 = 5,478,030/x
3. Step 3: Cross multiply
   2,549,556x = 5,478,030 × 5,478,030
4. Step 4: Simplify right side
   2,549,556x = 30,008,812,680,900
5. Step 5: Solve for x
   x = 30,008,812,680,900/2,549,556
6. Step 6: Final answer
   x = 11,770,211.24