Finding the Third Proportional to 118,403.50 and 253,695

Step by Step Solution

1. Step 1: Write the proportion equation
   118,403.50 : 253,695 = 253,695 : x
2. Step 2: Convert to fraction form
   118,403.50/253,695 = 253,695/x
3. Step 3: Cross multiply
   118,403.50x = 253,695 × 253,695
4. Step 4: Simplify right side
   118,403.50x = 64,361,153,025
5. Step 5: Solve for x
   x = 64,361,153,025/118,403.50
6. Step 6: Final answer
   x = 543,574.75