Finding the Third Proportional to 1,377,477 and 2,171,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377,477 : 2,171,860 = 2,171,860 : x
2. Step 2: Convert to fraction form
   1,377,477/2,171,860 = 2,171,860/x
3. Step 3: Cross multiply
   1,377,477x = 2,171,860 × 2,171,860
4. Step 4: Simplify right side
   1,377,477x = 4,716,975,859,600
5. Step 5: Solve for x
   x = 4,716,975,859,600/1,377,477
6. Step 6: Final answer
   x = 3,424,359.07