Finding the Third Proportional to 90,311.50 and 134,160

Step by Step Solution

1. Step 1: Write the proportion equation
   90,311.50 : 134,160 = 134,160 : x
2. Step 2: Convert to fraction form
   90,311.50/134,160 = 134,160/x
3. Step 3: Cross multiply
   90,311.50x = 134,160 × 134,160
4. Step 4: Simplify right side
   90,311.50x = 17,998,905,600
5. Step 5: Solve for x
   x = 17,998,905,600/90,311.50
6. Step 6: Final answer
   x = 199,298.05