Finding the Third Proportional to 68,890.50 and 88,512.75

Step by Step Solution

1. Step 1: Write the proportion equation
   68,890.50 : 88,512.75 = 88,512.75 : x
2. Step 2: Convert to fraction form
   68,890.50/88,512.75 = 88,512.75/x
3. Step 3: Cross multiply
   68,890.50x = 88,512.75 × 88,512.75
4. Step 4: Simplify right side
   68,890.50x = 7,834,506,912.56
5. Step 5: Solve for x
   x = 7,834,506,912.56/68,890.50
6. Step 6: Final answer
   x = 113,724.05