Finding the Third Proportional to 118,410 and 253,667

Step by Step Solution

1. Step 1: Write the proportion equation
   118,410 : 253,667 = 253,667 : x
2. Step 2: Convert to fraction form
   118,410/253,667 = 253,667/x
3. Step 3: Cross multiply
   118,410x = 253,667 × 253,667
4. Step 4: Simplify right side
   118,410x = 64,346,946,889
5. Step 5: Solve for x
   x = 64,346,946,889/118,410
6. Step 6: Final answer
   x = 543,424.94