Finding the Third Proportional to 1,368,509 and 1,971,286

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,509 : 1,971,286 = 1,971,286 : x
2. Step 2: Convert to fraction form
   1,368,509/1,971,286 = 1,971,286/x
3. Step 3: Cross multiply
   1,368,509x = 1,971,286 × 1,971,286
4. Step 4: Simplify right side
   1,368,509x = 3,885,968,493,796
5. Step 5: Solve for x
   x = 3,885,968,493,796/1,368,509
6. Step 6: Final answer
   x = 2,839,563.71