Finding the Third Proportional to 116,279 and 251,148

Step by Step Solution

1. Step 1: Write the proportion equation
   116,279 : 251,148 = 251,148 : x
2. Step 2: Convert to fraction form
   116,279/251,148 = 251,148/x
3. Step 3: Cross multiply
   116,279x = 251,148 × 251,148
4. Step 4: Simplify right side
   116,279x = 63,075,317,904
5. Step 5: Solve for x
   x = 63,075,317,904/116,279
6. Step 6: Final answer
   x = 542,448.06