Finding the Third Proportional to 2,515,784 and 5,429,906

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515,784 : 5,429,906 = 5,429,906 : x
2. Step 2: Convert to fraction form
   2,515,784/5,429,906 = 5,429,906/x
3. Step 3: Cross multiply
   2,515,784x = 5,429,906 × 5,429,906
4. Step 4: Simplify right side
   2,515,784x = 29,483,879,168,836
5. Step 5: Solve for x
   x = 29,483,879,168,836/2,515,784
6. Step 6: Final answer
   x = 11,719,559.06