Finding the Third Proportional to 2,605,401 and 5,656,428

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,401 : 5,656,428 = 5,656,428 : x
2. Step 2: Convert to fraction form
   2,605,401/5,656,428 = 5,656,428/x
3. Step 3: Cross multiply
   2,605,401x = 5,656,428 × 5,656,428
4. Step 4: Simplify right side
   2,605,401x = 31,995,177,719,184
5. Step 5: Solve for x
   x = 31,995,177,719,184/2,605,401
6. Step 6: Final answer
   x = 12,280,327.57