Finding the Third Proportional to 114,978 and 251,340

Step by Step Solution

1. Step 1: Write the proportion equation
   114,978 : 251,340 = 251,340 : x
2. Step 2: Convert to fraction form
   114,978/251,340 = 251,340/x
3. Step 3: Cross multiply
   114,978x = 251,340 × 251,340
4. Step 4: Simplify right side
   114,978x = 63,171,795,600
5. Step 5: Solve for x
   x = 63,171,795,600/114,978
6. Step 6: Final answer
   x = 549,425.07