Finding the Third Proportional to 116,460 and 248,172

Step by Step Solution

1. Step 1: Write the proportion equation
   116,460 : 248,172 = 248,172 : x
2. Step 2: Convert to fraction form
   116,460/248,172 = 248,172/x
3. Step 3: Cross multiply
   116,460x = 248,172 × 248,172
4. Step 4: Simplify right side
   116,460x = 61,589,341,584
5. Step 5: Solve for x
   x = 61,589,341,584/116,460
6. Step 6: Final answer
   x = 528,845.45