Finding the Third Proportional to 2,005,200 and 4,175,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005,200 : 4,175,640 = 4,175,640 : x
2. Step 2: Convert to fraction form
   2,005,200/4,175,640 = 4,175,640/x
3. Step 3: Cross multiply
   2,005,200x = 4,175,640 × 4,175,640
4. Step 4: Simplify right side
   2,005,200x = 17,435,969,409,600
5. Step 5: Solve for x
   x = 17,435,969,409,600/2,005,200
6. Step 6: Final answer
   x = 8,695,376.73