Finding the Third Proportional to 390,649.25 and 587,014

Step by Step Solution

1. Step 1: Write the proportion equation
   390,649.25 : 587,014 = 587,014 : x
2. Step 2: Convert to fraction form
   390,649.25/587,014 = 587,014/x
3. Step 3: Cross multiply
   390,649.25x = 587,014 × 587,014
4. Step 4: Simplify right side
   390,649.25x = 344,585,436,196
5. Step 5: Solve for x
   x = 344,585,436,196/390,649.25
6. Step 6: Final answer
   x = 882,083.96