Finding the Third Proportional to 283,764.50 and 423,186

Step by Step Solution

1. Step 1: Write the proportion equation
   283,764.50 : 423,186 = 423,186 : x
2. Step 2: Convert to fraction form
   283,764.50/423,186 = 423,186/x
3. Step 3: Cross multiply
   283,764.50x = 423,186 × 423,186
4. Step 4: Simplify right side
   283,764.50x = 179,086,390,596
5. Step 5: Solve for x
   x = 179,086,390,596/283,764.50
6. Step 6: Final answer
   x = 631,109.21