Finding the Third Proportional to 116,278 and 251,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,278 : 251,145.50 = 251,145.50 : x
2. Step 2: Convert to fraction form
   116,278/251,145.50 = 251,145.50/x
3. Step 3: Cross multiply
   116,278x = 251,145.50 × 251,145.50
4. Step 4: Simplify right side
   116,278x = 63,074,062,170.25
5. Step 5: Solve for x
   x = 63,074,062,170.25/116,278
6. Step 6: Final answer
   x = 542,441.93