Finding the Third Proportional to 118,238 and 251,810

Step by Step Solution

1. Step 1: Write the proportion equation
   118,238 : 251,810 = 251,810 : x
2. Step 2: Convert to fraction form
   118,238/251,810 = 251,810/x
3. Step 3: Cross multiply
   118,238x = 251,810 × 251,810
4. Step 4: Simplify right side
   118,238x = 63,408,276,100
5. Step 5: Solve for x
   x = 63,408,276,100/118,238
6. Step 6: Final answer
   x = 536,276.63