Finding the Third Proportional to 398,865.50 and 598,576

Step by Step Solution

1. Step 1: Write the proportion equation
   398,865.50 : 598,576 = 598,576 : x
2. Step 2: Convert to fraction form
   398,865.50/598,576 = 598,576/x
3. Step 3: Cross multiply
   398,865.50x = 598,576 × 598,576
4. Step 4: Simplify right side
   398,865.50x = 358,293,227,776
5. Step 5: Solve for x
   x = 358,293,227,776/398,865.50
6. Step 6: Final answer
   x = 898,280.82