Finding the Third Proportional to 142,262 and 190,917

Step by Step Solution

1. Step 1: Write the proportion equation
   142,262 : 190,917 = 190,917 : x
2. Step 2: Convert to fraction form
   142,262/190,917 = 190,917/x
3. Step 3: Cross multiply
   142,262x = 190,917 × 190,917
4. Step 4: Simplify right side
   142,262x = 36,449,300,889
5. Step 5: Solve for x
   x = 36,449,300,889/142,262
6. Step 6: Final answer
   x = 256,212.49