Finding the Third Proportional to 118,188 and 256,068

Step by Step Solution

1. Step 1: Write the proportion equation
   118,188 : 256,068 = 256,068 : x
2. Step 2: Convert to fraction form
   118,188/256,068 = 256,068/x
3. Step 3: Cross multiply
   118,188x = 256,068 × 256,068
4. Step 4: Simplify right side
   118,188x = 65,570,820,624
5. Step 5: Solve for x
   x = 65,570,820,624/118,188
6. Step 6: Final answer
   x = 554,801.00