Finding the Third Proportional to 142,302 and 316,116

Step by Step Solution

1. Step 1: Write the proportion equation
   142,302 : 316,116 = 316,116 : x
2. Step 2: Convert to fraction form
   142,302/316,116 = 316,116/x
3. Step 3: Cross multiply
   142,302x = 316,116 × 316,116
4. Step 4: Simplify right side
   142,302x = 99,929,325,456
5. Step 5: Solve for x
   x = 99,929,325,456/142,302
6. Step 6: Final answer
   x = 702,234.16