Finding the Third Proportional to 83,118 and 178,143

Step by Step Solution

1. Step 1: Write the proportion equation
   83,118 : 178,143 = 178,143 : x
2. Step 2: Convert to fraction form
   83,118/178,143 = 178,143/x
3. Step 3: Cross multiply
   83,118x = 178,143 × 178,143
4. Step 4: Simplify right side
   83,118x = 31,734,928,449
5. Step 5: Solve for x
   x = 31,734,928,449/83,118
6. Step 6: Final answer
   x = 381,805.73