Finding the Third Proportional to 117,474 and 257,910.75

Step by Step Solution

1. Step 1: Write the proportion equation
   117,474 : 257,910.75 = 257,910.75 : x
2. Step 2: Convert to fraction form
   117,474/257,910.75 = 257,910.75/x
3. Step 3: Cross multiply
   117,474x = 257,910.75 × 257,910.75
4. Step 4: Simplify right side
   117,474x = 66,517,954,965.56
5. Step 5: Solve for x
   x = 66,517,954,965.56/117,474
6. Step 6: Final answer
   x = 566,235.55