Finding the Third Proportional to 139,241.50 and 304,565

Step by Step Solution

1. Step 1: Write the proportion equation
   139,241.50 : 304,565 = 304,565 : x
2. Step 2: Convert to fraction form
   139,241.50/304,565 = 304,565/x
3. Step 3: Cross multiply
   139,241.50x = 304,565 × 304,565
4. Step 4: Simplify right side
   139,241.50x = 92,759,839,225
5. Step 5: Solve for x
   x = 92,759,839,225/139,241.50
6. Step 6: Final answer
   x = 666,179.55