Finding the Third Proportional to 621,256 and 1,358,826

Step by Step Solution

1. Step 1: Write the proportion equation
   621,256 : 1,358,826 = 1,358,826 : x
2. Step 2: Convert to fraction form
   621,256/1,358,826 = 1,358,826/x
3. Step 3: Cross multiply
   621,256x = 1,358,826 × 1,358,826
4. Step 4: Simplify right side
   621,256x = 1,846,408,098,276
5. Step 5: Solve for x
   x = 1,846,408,098,276/621,256
6. Step 6: Final answer
   x = 2,972,056.77