Finding the Third Proportional to 139,785.75 and 304,398

Step by Step Solution

1. Step 1: Write the proportion equation
   139,785.75 : 304,398 = 304,398 : x
2. Step 2: Convert to fraction form
   139,785.75/304,398 = 304,398/x
3. Step 3: Cross multiply
   139,785.75x = 304,398 × 304,398
4. Step 4: Simplify right side
   139,785.75x = 92,658,142,404
5. Step 5: Solve for x
   x = 92,658,142,404/139,785.75
6. Step 6: Final answer
   x = 662,858.28