Finding the Third Proportional to 1,387,067 and 2,176,448

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,067 : 2,176,448 = 2,176,448 : x
2. Step 2: Convert to fraction form
   1,387,067/2,176,448 = 2,176,448/x
3. Step 3: Cross multiply
   1,387,067x = 2,176,448 × 2,176,448
4. Step 4: Simplify right side
   1,387,067x = 4,736,925,896,704
5. Step 5: Solve for x
   x = 4,736,925,896,704/1,387,067
6. Step 6: Final answer
   x = 3,415,066.39