Finding the Third Proportional to 360,601.88 and 558,333

Step by Step Solution

1. Step 1: Write the proportion equation
   360,601.88 : 558,333 = 558,333 : x
2. Step 2: Convert to fraction form
   360,601.88/558,333 = 558,333/x
3. Step 3: Cross multiply
   360,601.88x = 558,333 × 558,333
4. Step 4: Simplify right side
   360,601.88x = 311,735,738,889
5. Step 5: Solve for x
   x = 311,735,738,889/360,601.88
6. Step 6: Final answer
   x = 864,487.29