Finding the Third Proportional to 1,256,206 and 1,531,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,256,206 : 1,531,768 = 1,531,768 : x
2. Step 2: Convert to fraction form
   1,256,206/1,531,768 = 1,531,768/x
3. Step 3: Cross multiply
   1,256,206x = 1,531,768 × 1,531,768
4. Step 4: Simplify right side
   1,256,206x = 2,346,313,205,824
5. Step 5: Solve for x
   x = 2,346,313,205,824/1,256,206
6. Step 6: Final answer
   x = 1,867,777.42