Finding the Third Proportional to 1,022,817 and 2,151,339

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022,817 : 2,151,339 = 2,151,339 : x
2. Step 2: Convert to fraction form
   1,022,817/2,151,339 = 2,151,339/x
3. Step 3: Cross multiply
   1,022,817x = 2,151,339 × 2,151,339
4. Step 4: Simplify right side
   1,022,817x = 4,628,259,492,921
5. Step 5: Solve for x
   x = 4,628,259,492,921/1,022,817
6. Step 6: Final answer
   x = 4,525,012.29