Finding the Third Proportional to 118,401 and 253,650

Step by Step Solution

1. Step 1: Write the proportion equation
   118,401 : 253,650 = 253,650 : x
2. Step 2: Convert to fraction form
   118,401/253,650 = 253,650/x
3. Step 3: Cross multiply
   118,401x = 253,650 × 253,650
4. Step 4: Simplify right side
   118,401x = 64,338,322,500
5. Step 5: Solve for x
   x = 64,338,322,500/118,401
6. Step 6: Final answer
   x = 543,393.40