Finding the Third Proportional to 2,175,405 and 4,665,630

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,405 : 4,665,630 = 4,665,630 : x
2. Step 2: Convert to fraction form
   2,175,405/4,665,630 = 4,665,630/x
3. Step 3: Cross multiply
   2,175,405x = 4,665,630 × 4,665,630
4. Step 4: Simplify right side
   2,175,405x = 21,768,103,296,900
5. Step 5: Solve for x
   x = 21,768,103,296,900/2,175,405
6. Step 6: Final answer
   x = 10,006,460.08