Finding the Third Proportional to 1,377,475 and 2,171,857

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377,475 : 2,171,857 = 2,171,857 : x
2. Step 2: Convert to fraction form
   1,377,475/2,171,857 = 2,171,857/x
3. Step 3: Cross multiply
   1,377,475x = 2,171,857 × 2,171,857
4. Step 4: Simplify right side
   1,377,475x = 4,716,962,828,449
5. Step 5: Solve for x
   x = 4,716,962,828,449/1,377,475
6. Step 6: Final answer
   x = 3,424,354.58