Finding the Third Proportional to 1,378,773 and 2,978,910

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378,773 : 2,978,910 = 2,978,910 : x
2. Step 2: Convert to fraction form
   1,378,773/2,978,910 = 2,978,910/x
3. Step 3: Cross multiply
   1,378,773x = 2,978,910 × 2,978,910
4. Step 4: Simplify right side
   1,378,773x = 8,873,904,788,100
5. Step 5: Solve for x
   x = 8,873,904,788,100/1,378,773
6. Step 6: Final answer
   x = 6,436,088.31