Finding the Third Proportional to 709,368 and 1,072,446

Step by Step Solution

1. Step 1: Write the proportion equation
   709,368 : 1,072,446 = 1,072,446 : x
2. Step 2: Convert to fraction form
   709,368/1,072,446 = 1,072,446/x
3. Step 3: Cross multiply
   709,368x = 1,072,446 × 1,072,446
4. Step 4: Simplify right side
   709,368x = 1,150,140,422,916
5. Step 5: Solve for x
   x = 1,150,140,422,916/709,368
6. Step 6: Final answer
   x = 1,621,359.33