Finding the Third Proportional to 1,355,356 and 1,987,767

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,356 : 1,987,767 = 1,987,767 : x
2. Step 2: Convert to fraction form
   1,355,356/1,987,767 = 1,987,767/x
3. Step 3: Cross multiply
   1,355,356x = 1,987,767 × 1,987,767
4. Step 4: Simplify right side
   1,355,356x = 3,951,217,646,289
5. Step 5: Solve for x
   x = 3,951,217,646,289/1,355,356
6. Step 6: Final answer
   x = 2,915,261.85