Finding the Third Proportional to 141,808 and 309,374

Step by Step Solution

1. Step 1: Write the proportion equation
   141,808 : 309,374 = 309,374 : x
2. Step 2: Convert to fraction form
   141,808/309,374 = 309,374/x
3. Step 3: Cross multiply
   141,808x = 309,374 × 309,374
4. Step 4: Simplify right side
   141,808x = 95,712,271,876
5. Step 5: Solve for x
   x = 95,712,271,876/141,808
6. Step 6: Final answer
   x = 674,942.68