Finding the Third Proportional to 2,353,978 and 4,990,432

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353,978 : 4,990,432 = 4,990,432 : x
2. Step 2: Convert to fraction form
   2,353,978/4,990,432 = 4,990,432/x
3. Step 3: Cross multiply
   2,353,978x = 4,990,432 × 4,990,432
4. Step 4: Simplify right side
   2,353,978x = 24,904,411,546,624
5. Step 5: Solve for x
   x = 24,904,411,546,624/2,353,978
6. Step 6: Final answer
   x = 10,579,712.96