Finding the Third Proportional to 141,515 and 309,274

Step by Step Solution

1. Step 1: Write the proportion equation
   141,515 : 309,274 = 309,274 : x
2. Step 2: Convert to fraction form
   141,515/309,274 = 309,274/x
3. Step 3: Cross multiply
   141,515x = 309,274 × 309,274
4. Step 4: Simplify right side
   141,515x = 95,650,407,076
5. Step 5: Solve for x
   x = 95,650,407,076/141,515
6. Step 6: Final answer
   x = 675,902.96