Finding the Third Proportional to 118,370 and 254,308

Step by Step Solution

1. Step 1: Write the proportion equation
   118,370 : 254,308 = 254,308 : x
2. Step 2: Convert to fraction form
   118,370/254,308 = 254,308/x
3. Step 3: Cross multiply
   118,370x = 254,308 × 254,308
4. Step 4: Simplify right side
   118,370x = 64,672,558,864
5. Step 5: Solve for x
   x = 64,672,558,864/118,370
6. Step 6: Final answer
   x = 546,359.37