Finding the Third Proportional to 2,175,621 and 4,712,826

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,621 : 4,712,826 = 4,712,826 : x
2. Step 2: Convert to fraction form
   2,175,621/4,712,826 = 4,712,826/x
3. Step 3: Cross multiply
   2,175,621x = 4,712,826 × 4,712,826
4. Step 4: Simplify right side
   2,175,621x = 22,210,728,906,276
5. Step 5: Solve for x
   x = 22,210,728,906,276/2,175,621
6. Step 6: Final answer
   x = 10,208,914.56