Finding the Third Proportional to 5,477,412 and 11,820,870

Step by Step Solution

1. Step 1: Write the proportion equation
   5,477,412 : 11,820,870 = 11,820,870 : x
2. Step 2: Convert to fraction form
   5,477,412/11,820,870 = 11,820,870/x
3. Step 3: Cross multiply
   5,477,412x = 11,820,870 × 11,820,870
4. Step 4: Simplify right side
   5,477,412x = 139,732,967,556,900
5. Step 5: Solve for x
   x = 139,732,967,556,900/5,477,412
6. Step 6: Final answer
   x = 25,510,764.49