Finding the Third Proportional to 298,012.50 and 447,687

Step by Step Solution

1. Step 1: Write the proportion equation
   298,012.50 : 447,687 = 447,687 : x
2. Step 2: Convert to fraction form
   298,012.50/447,687 = 447,687/x
3. Step 3: Cross multiply
   298,012.50x = 447,687 × 447,687
4. Step 4: Simplify right side
   298,012.50x = 200,423,649,969
5. Step 5: Solve for x
   x = 200,423,649,969/298,012.50
6. Step 6: Final answer
   x = 672,534.37