Finding the Third Proportional to 116,418 and 248,100

Step by Step Solution

1. Step 1: Write the proportion equation
   116,418 : 248,100 = 248,100 : x
2. Step 2: Convert to fraction form
   116,418/248,100 = 248,100/x
3. Step 3: Cross multiply
   116,418x = 248,100 × 248,100
4. Step 4: Simplify right side
   116,418x = 61,553,610,000
5. Step 5: Solve for x
   x = 61,553,610,000/116,418
6. Step 6: Final answer
   x = 528,729.32