Finding the Third Proportional to 90,338 and 134,200

Step by Step Solution

1. Step 1: Write the proportion equation
   90,338 : 134,200 = 134,200 : x
2. Step 2: Convert to fraction form
   90,338/134,200 = 134,200/x
3. Step 3: Cross multiply
   90,338x = 134,200 × 134,200
4. Step 4: Simplify right side
   90,338x = 18,009,640,000
5. Step 5: Solve for x
   x = 18,009,640,000/90,338
6. Step 6: Final answer
   x = 199,358.41