Finding the Third Proportional to 439,060.50 and 662,049

Step by Step Solution

1. Step 1: Write the proportion equation
   439,060.50 : 662,049 = 662,049 : x
2. Step 2: Convert to fraction form
   439,060.50/662,049 = 662,049/x
3. Step 3: Cross multiply
   439,060.50x = 662,049 × 662,049
4. Step 4: Simplify right side
   439,060.50x = 438,308,878,401
5. Step 5: Solve for x
   x = 438,308,878,401/439,060.50
6. Step 6: Final answer
   x = 998,288.11