Finding the Third Proportional to 139,466 and 307,084

Step by Step Solution

1. Step 1: Write the proportion equation
   139,466 : 307,084 = 307,084 : x
2. Step 2: Convert to fraction form
   139,466/307,084 = 307,084/x
3. Step 3: Cross multiply
   139,466x = 307,084 × 307,084
4. Step 4: Simplify right side
   139,466x = 94,300,583,056
5. Step 5: Solve for x
   x = 94,300,583,056/139,466
6. Step 6: Final answer
   x = 676,154.64