Finding the Third Proportional to 118,399.50 and 253,593

Step by Step Solution

1. Step 1: Write the proportion equation
   118,399.50 : 253,593 = 253,593 : x
2. Step 2: Convert to fraction form
   118,399.50/253,593 = 253,593/x
3. Step 3: Cross multiply
   118,399.50x = 253,593 × 253,593
4. Step 4: Simplify right side
   118,399.50x = 64,309,409,649
5. Step 5: Solve for x
   x = 64,309,409,649/118,399.50
6. Step 6: Final answer
   x = 543,156.09