Finding the Third Proportional to 820,850 and 1,231,299

Step by Step Solution

1. Step 1: Write the proportion equation
   820,850 : 1,231,299 = 1,231,299 : x
2. Step 2: Convert to fraction form
   820,850/1,231,299 = 1,231,299/x
3. Step 3: Cross multiply
   820,850x = 1,231,299 × 1,231,299
4. Step 4: Simplify right side
   820,850x = 1,516,097,227,401
5. Step 5: Solve for x
   x = 1,516,097,227,401/820,850
6. Step 6: Final answer
   x = 1,846,984.50