Finding the Third Proportional to 4,200,920 and 6,517,388

Step by Step Solution

1. Step 1: Write the proportion equation
   4,200,920 : 6,517,388 = 6,517,388 : x
2. Step 2: Convert to fraction form
   4,200,920/6,517,388 = 6,517,388/x
3. Step 3: Cross multiply
   4,200,920x = 6,517,388 × 6,517,388
4. Step 4: Simplify right side
   4,200,920x = 42,476,346,342,544
5. Step 5: Solve for x
   x = 42,476,346,342,544/4,200,920
6. Step 6: Final answer
   x = 10,111,200.96