Finding the Third Proportional to 141,792 and 309,340

Step by Step Solution

1. Step 1: Write the proportion equation
   141,792 : 309,340 = 309,340 : x
2. Step 2: Convert to fraction form
   141,792/309,340 = 309,340/x
3. Step 3: Cross multiply
   141,792x = 309,340 × 309,340
4. Step 4: Simplify right side
   141,792x = 95,691,235,600
5. Step 5: Solve for x
   x = 95,691,235,600/141,792
6. Step 6: Final answer
   x = 674,870.48