Finding the Third Proportional to 2,099,274 and 4,578,402

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,274 : 4,578,402 = 4,578,402 : x
2. Step 2: Convert to fraction form
   2,099,274/4,578,402 = 4,578,402/x
3. Step 3: Cross multiply
   2,099,274x = 4,578,402 × 4,578,402
4. Step 4: Simplify right side
   2,099,274x = 20,961,764,873,604
5. Step 5: Solve for x
   x = 20,961,764,873,604/2,099,274
6. Step 6: Final answer
   x = 9,985,244.84