Finding the Third Proportional to 4,645,240 and 6,418,860

Step by Step Solution

1. Step 1: Write the proportion equation
   4,645,240 : 6,418,860 = 6,418,860 : x
2. Step 2: Convert to fraction form
   4,645,240/6,418,860 = 6,418,860/x
3. Step 3: Cross multiply
   4,645,240x = 6,418,860 × 6,418,860
4. Step 4: Simplify right side
   4,645,240x = 41,201,763,699,600
5. Step 5: Solve for x
   x = 41,201,763,699,600/4,645,240
6. Step 6: Final answer
   x = 8,869,673.84