Finding the Third Proportional to 87,105.75 and 122,667.75

Step by Step Solution

1. Step 1: Write the proportion equation
   87,105.75 : 122,667.75 = 122,667.75 : x
2. Step 2: Convert to fraction form
   87,105.75/122,667.75 = 122,667.75/x
3. Step 3: Cross multiply
   87,105.75x = 122,667.75 × 122,667.75
4. Step 4: Simplify right side
   87,105.75x = 15,047,376,890.06
5. Step 5: Solve for x
   x = 15,047,376,890.06/87,105.75
6. Step 6: Final answer
   x = 172,748.38