Finding the Third Proportional to 154,740 and 245,934

Step by Step Solution

1. Step 1: Write the proportion equation
   154,740 : 245,934 = 245,934 : x
2. Step 2: Convert to fraction form
   154,740/245,934 = 245,934/x
3. Step 3: Cross multiply
   154,740x = 245,934 × 245,934
4. Step 4: Simplify right side
   154,740x = 60,483,532,356
5. Step 5: Solve for x
   x = 60,483,532,356/154,740
6. Step 6: Final answer
   x = 390,871.99