Finding the Third Proportional to 1,222,142 and 2,630,658

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222,142 : 2,630,658 = 2,630,658 : x
2. Step 2: Convert to fraction form
   1,222,142/2,630,658 = 2,630,658/x
3. Step 3: Cross multiply
   1,222,142x = 2,630,658 × 2,630,658
4. Step 4: Simplify right side
   1,222,142x = 6,920,361,512,964
5. Step 5: Solve for x
   x = 6,920,361,512,964/1,222,142
6. Step 6: Final answer
   x = 5,662,485.63