Finding the Third Proportional to 144,082 and 316,188

Step by Step Solution

1. Step 1: Write the proportion equation
   144,082 : 316,188 = 316,188 : x
2. Step 2: Convert to fraction form
   144,082/316,188 = 316,188/x
3. Step 3: Cross multiply
   144,082x = 316,188 × 316,188
4. Step 4: Simplify right side
   144,082x = 99,974,851,344
5. Step 5: Solve for x
   x = 99,974,851,344/144,082
6. Step 6: Final answer
   x = 693,874.68