Finding the Third Proportional to 141,792 and 309,342

Step by Step Solution

1. Step 1: Write the proportion equation
   141,792 : 309,342 = 309,342 : x
2. Step 2: Convert to fraction form
   141,792/309,342 = 309,342/x
3. Step 3: Cross multiply
   141,792x = 309,342 × 309,342
4. Step 4: Simplify right side
   141,792x = 95,692,472,964
5. Step 5: Solve for x
   x = 95,692,472,964/141,792
6. Step 6: Final answer
   x = 674,879.21