Finding the Third Proportional to 1,072,826 and 1,620,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,826 : 1,620,172 = 1,620,172 : x
2. Step 2: Convert to fraction form
   1,072,826/1,620,172 = 1,620,172/x
3. Step 3: Cross multiply
   1,072,826x = 1,620,172 × 1,620,172
4. Step 4: Simplify right side
   1,072,826x = 2,624,957,309,584
5. Step 5: Solve for x
   x = 2,624,957,309,584/1,072,826
6. Step 6: Final answer
   x = 2,446,768.92