Finding the Third Proportional to 139,154 and 304,564

Step by Step Solution

1. Step 1: Write the proportion equation
   139,154 : 304,564 = 304,564 : x
2. Step 2: Convert to fraction form
   139,154/304,564 = 304,564/x
3. Step 3: Cross multiply
   139,154x = 304,564 × 304,564
4. Step 4: Simplify right side
   139,154x = 92,759,230,096
5. Step 5: Solve for x
   x = 92,759,230,096/139,154
6. Step 6: Final answer
   x = 666,594.06