Finding the Third Proportional to 1,636,981 and 3,571,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,981 : 3,571,312 = 3,571,312 : x
2. Step 2: Convert to fraction form
   1,636,981/3,571,312 = 3,571,312/x
3. Step 3: Cross multiply
   1,636,981x = 3,571,312 × 3,571,312
4. Step 4: Simplify right side
   1,636,981x = 12,754,269,401,344
5. Step 5: Solve for x
   x = 12,754,269,401,344/1,636,981
6. Step 6: Final answer
   x = 7,791,336.25