Finding the Third Proportional to 67,150.50 and 90,874.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,150.50 : 90,874.50 = 90,874.50 : x
2. Step 2: Convert to fraction form
   67,150.50/90,874.50 = 90,874.50/x
3. Step 3: Cross multiply
   67,150.50x = 90,874.50 × 90,874.50
4. Step 4: Simplify right side
   67,150.50x = 8,258,174,750.25
5. Step 5: Solve for x
   x = 8,258,174,750.25/67,150.50
6. Step 6: Final answer
   x = 122,980.09