Finding the Third Proportional to 1,430,664 and 2,978,864

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430,664 : 2,978,864 = 2,978,864 : x
2. Step 2: Convert to fraction form
   1,430,664/2,978,864 = 2,978,864/x
3. Step 3: Cross multiply
   1,430,664x = 2,978,864 × 2,978,864
4. Step 4: Simplify right side
   1,430,664x = 8,873,630,730,496
5. Step 5: Solve for x
   x = 8,873,630,730,496/1,430,664
6. Step 6: Final answer
   x = 6,202,456.15