Finding the Third Proportional to 331,107 and 692,193.38

Step by Step Solution

1. Step 1: Write the proportion equation
   331,107 : 692,193.38 = 692,193.38 : x
2. Step 2: Convert to fraction form
   331,107/692,193.38 = 692,193.38/x
3. Step 3: Cross multiply
   331,107x = 692,193.38 × 692,193.38
4. Step 4: Simplify right side
   331,107x = 479,131,668,393.89
5. Step 5: Solve for x
   x = 479,131,668,393.89/331,107
6. Step 6: Final answer
   x = 1,447,059.92