Finding the Third Proportional to 90,315 and 134,164

Step by Step Solution

1. Step 1: Write the proportion equation
   90,315 : 134,164 = 134,164 : x
2. Step 2: Convert to fraction form
   90,315/134,164 = 134,164/x
3. Step 3: Cross multiply
   90,315x = 134,164 × 134,164
4. Step 4: Simplify right side
   90,315x = 17,999,978,896
5. Step 5: Solve for x
   x = 17,999,978,896/90,315
6. Step 6: Final answer
   x = 199,302.21