Finding the Third Proportional to 3,934,284 and 5,315,175

Step by Step Solution

1. Step 1: Write the proportion equation
   3,934,284 : 5,315,175 = 5,315,175 : x
2. Step 2: Convert to fraction form
   3,934,284/5,315,175 = 5,315,175/x
3. Step 3: Cross multiply
   3,934,284x = 5,315,175 × 5,315,175
4. Step 4: Simplify right side
   3,934,284x = 28,251,085,280,625
5. Step 5: Solve for x
   x = 28,251,085,280,625/3,934,284
6. Step 6: Final answer
   x = 7,180,743.76