Finding the Third Proportional to 1,286,643 and 1,892,532

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,643 : 1,892,532 = 1,892,532 : x
2. Step 2: Convert to fraction form
   1,286,643/1,892,532 = 1,892,532/x
3. Step 3: Cross multiply
   1,286,643x = 1,892,532 × 1,892,532
4. Step 4: Simplify right side
   1,286,643x = 3,581,677,371,024
5. Step 5: Solve for x
   x = 3,581,677,371,024/1,286,643
6. Step 6: Final answer
   x = 2,783,738.28