Finding the Third Proportional to 3,439,872 and 7,476,768

Step by Step Solution

1. Step 1: Write the proportion equation
   3,439,872 : 7,476,768 = 7,476,768 : x
2. Step 2: Convert to fraction form
   3,439,872/7,476,768 = 7,476,768/x
3. Step 3: Cross multiply
   3,439,872x = 7,476,768 × 7,476,768
4. Step 4: Simplify right side
   3,439,872x = 55,902,059,725,824
5. Step 5: Solve for x
   x = 55,902,059,725,824/3,439,872
6. Step 6: Final answer
   x = 16,251,203.45