Finding the Third Proportional to 90,040.50 and 122,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,040.50 : 122,086.50 = 122,086.50 : x
2. Step 2: Convert to fraction form
   90,040.50/122,086.50 = 122,086.50/x
3. Step 3: Cross multiply
   90,040.50x = 122,086.50 × 122,086.50
4. Step 4: Simplify right side
   90,040.50x = 14,905,113,482.25
5. Step 5: Solve for x
   x = 14,905,113,482.25/90,040.50
6. Step 6: Final answer
   x = 165,537.88