Finding the Third Proportional to 2,099,245 and 4,578,343

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,245 : 4,578,343 = 4,578,343 : x
2. Step 2: Convert to fraction form
   2,099,245/4,578,343 = 4,578,343/x
3. Step 3: Cross multiply
   2,099,245x = 4,578,343 × 4,578,343
4. Step 4: Simplify right side
   2,099,245x = 20,961,224,625,649
5. Step 5: Solve for x
   x = 20,961,224,625,649/2,099,245
6. Step 6: Final answer
   x = 9,985,125.43