Finding the Third Proportional to 118,402.50 and 253,653

Step by Step Solution

1. Step 1: Write the proportion equation
   118,402.50 : 253,653 = 253,653 : x
2. Step 2: Convert to fraction form
   118,402.50/253,653 = 253,653/x
3. Step 3: Cross multiply
   118,402.50x = 253,653 × 253,653
4. Step 4: Simplify right side
   118,402.50x = 64,339,844,409
5. Step 5: Solve for x
   x = 64,339,844,409/118,402.50
6. Step 6: Final answer
   x = 543,399.37