Finding the Third Proportional to 4,644,398 and 7,173,680

Step by Step Solution

1. Step 1: Write the proportion equation
   4,644,398 : 7,173,680 = 7,173,680 : x
2. Step 2: Convert to fraction form
   4,644,398/7,173,680 = 7,173,680/x
3. Step 3: Cross multiply
   4,644,398x = 7,173,680 × 7,173,680
4. Step 4: Simplify right side
   4,644,398x = 51,461,684,742,400
5. Step 5: Solve for x
   x = 51,461,684,742,400/4,644,398
6. Step 6: Final answer
   x = 11,080,377.85