Finding the Third Proportional to 117,506 and 248,406

Step by Step Solution

1. Step 1: Write the proportion equation
   117,506 : 248,406 = 248,406 : x
2. Step 2: Convert to fraction form
   117,506/248,406 = 248,406/x
3. Step 3: Cross multiply
   117,506x = 248,406 × 248,406
4. Step 4: Simplify right side
   117,506x = 61,705,540,836
5. Step 5: Solve for x
   x = 61,705,540,836/117,506
6. Step 6: Final answer
   x = 525,126.72