Finding the Third Proportional to 2,163,407 and 4,616,375

Step by Step Solution

1. Step 1: Write the proportion equation
   2,163,407 : 4,616,375 = 4,616,375 : x
2. Step 2: Convert to fraction form
   2,163,407/4,616,375 = 4,616,375/x
3. Step 3: Cross multiply
   2,163,407x = 4,616,375 × 4,616,375
4. Step 4: Simplify right side
   2,163,407x = 21,310,918,140,625
5. Step 5: Solve for x
   x = 21,310,918,140,625/2,163,407
6. Step 6: Final answer
   x = 9,850,628.26