Finding the Third Proportional to 154,248 and 338,040

Step by Step Solution

1. Step 1: Write the proportion equation
   154,248 : 338,040 = 338,040 : x
2. Step 2: Convert to fraction form
   154,248/338,040 = 338,040/x
3. Step 3: Cross multiply
   154,248x = 338,040 × 338,040
4. Step 4: Simplify right side
   154,248x = 114,271,041,600
5. Step 5: Solve for x
   x = 114,271,041,600/154,248
6. Step 6: Final answer
   x = 740,826.73