Finding the Third Proportional to 2,255,430 and 4,862,970

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255,430 : 4,862,970 = 4,862,970 : x
2. Step 2: Convert to fraction form
   2,255,430/4,862,970 = 4,862,970/x
3. Step 3: Cross multiply
   2,255,430x = 4,862,970 × 4,862,970
4. Step 4: Simplify right side
   2,255,430x = 23,648,477,220,900
5. Step 5: Solve for x
   x = 23,648,477,220,900/2,255,430
6. Step 6: Final answer
   x = 10,485,130.21