Finding the Third Proportional to 2,175,642 and 4,712,868

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175,642 : 4,712,868 = 4,712,868 : x
2. Step 2: Convert to fraction form
   2,175,642/4,712,868 = 4,712,868/x
3. Step 3: Cross multiply
   2,175,642x = 4,712,868 × 4,712,868
4. Step 4: Simplify right side
   2,175,642x = 22,211,124,785,424
5. Step 5: Solve for x
   x = 22,211,124,785,424/2,175,642
6. Step 6: Final answer
   x = 10,208,997.98