Finding the Third Proportional to 815,665 and 1,749,469

Step by Step Solution

1. Step 1: Write the proportion equation
   815,665 : 1,749,469 = 1,749,469 : x
2. Step 2: Convert to fraction form
   815,665/1,749,469 = 1,749,469/x
3. Step 3: Cross multiply
   815,665x = 1,749,469 × 1,749,469
4. Step 4: Simplify right side
   815,665x = 3,060,641,781,961
5. Step 5: Solve for x
   x = 3,060,641,781,961/815,665
6. Step 6: Final answer
   x = 3,752,326.97