Finding the Third Proportional to 683,628 and 1,061,272

Step by Step Solution

1. Step 1: Write the proportion equation
   683,628 : 1,061,272 = 1,061,272 : x
2. Step 2: Convert to fraction form
   683,628/1,061,272 = 1,061,272/x
3. Step 3: Cross multiply
   683,628x = 1,061,272 × 1,061,272
4. Step 4: Simplify right side
   683,628x = 1,126,298,257,984
5. Step 5: Solve for x
   x = 1,126,298,257,984/683,628
6. Step 6: Final answer
   x = 1,647,530.91