Finding the Third Proportional to 139,876 and 301,865

Step by Step Solution

1. Step 1: Write the proportion equation
   139,876 : 301,865 = 301,865 : x
2. Step 2: Convert to fraction form
   139,876/301,865 = 301,865/x
3. Step 3: Cross multiply
   139,876x = 301,865 × 301,865
4. Step 4: Simplify right side
   139,876x = 91,122,478,225
5. Step 5: Solve for x
   x = 91,122,478,225/139,876
6. Step 6: Final answer
   x = 651,451.84