Finding the Third Proportional to 139,061 and 304,257

Step by Step Solution

1. Step 1: Write the proportion equation
   139,061 : 304,257 = 304,257 : x
2. Step 2: Convert to fraction form
   139,061/304,257 = 304,257/x
3. Step 3: Cross multiply
   139,061x = 304,257 × 304,257
4. Step 4: Simplify right side
   139,061x = 92,572,322,049
5. Step 5: Solve for x
   x = 92,572,322,049/139,061
6. Step 6: Final answer
   x = 665,695.79