Finding the Third Proportional to 1,230,890 and 2,559,628

Step by Step Solution

1. Step 1: Write the proportion equation
   1,230,890 : 2,559,628 = 2,559,628 : x
2. Step 2: Convert to fraction form
   1,230,890/2,559,628 = 2,559,628/x
3. Step 3: Cross multiply
   1,230,890x = 2,559,628 × 2,559,628
4. Step 4: Simplify right side
   1,230,890x = 6,551,695,498,384
5. Step 5: Solve for x
   x = 6,551,695,498,384/1,230,890
6. Step 6: Final answer
   x = 5,322,730.30