Finding the Third Proportional to 1,355,358 and 1,987,770

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355,358 : 1,987,770 = 1,987,770 : x
2. Step 2: Convert to fraction form
   1,355,358/1,987,770 = 1,987,770/x
3. Step 3: Cross multiply
   1,355,358x = 1,987,770 × 1,987,770
4. Step 4: Simplify right side
   1,355,358x = 3,951,229,572,900
5. Step 5: Solve for x
   x = 3,951,229,572,900/1,355,358
6. Step 6: Final answer
   x = 2,915,266.35