Finding the Third Proportional to 1,292,778 and 2,622,492

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292,778 : 2,622,492 = 2,622,492 : x
2. Step 2: Convert to fraction form
   1,292,778/2,622,492 = 2,622,492/x
3. Step 3: Cross multiply
   1,292,778x = 2,622,492 × 2,622,492
4. Step 4: Simplify right side
   1,292,778x = 6,877,464,290,064
5. Step 5: Solve for x
   x = 6,877,464,290,064/1,292,778
6. Step 6: Final answer
   x = 5,319,911.30