Finding the Third Proportional to 155,307.38 and 245,475.56

Step by Step Solution

1. Step 1: Write the proportion equation
   155,307.38 : 245,475.56 = 245,475.56 : x
2. Step 2: Convert to fraction form
   155,307.38/245,475.56 = 245,475.56/x
3. Step 3: Cross multiply
   155,307.38x = 245,475.56 × 245,475.56
4. Step 4: Simplify right side
   155,307.38x = 60,258,251,784.69
5. Step 5: Solve for x
   x = 60,258,251,784.69/155,307.38
6. Step 6: Final answer
   x = 387,993.50