Finding the Third Proportional to 117,808 and 245,550

Step by Step Solution

1. Step 1: Write the proportion equation
   117,808 : 245,550 = 245,550 : x
2. Step 2: Convert to fraction form
   117,808/245,550 = 245,550/x
3. Step 3: Cross multiply
   117,808x = 245,550 × 245,550
4. Step 4: Simplify right side
   117,808x = 60,294,802,500
5. Step 5: Solve for x
   x = 60,294,802,500/117,808
6. Step 6: Final answer
   x = 511,805.67