Finding the Third Proportional to 60,709.50 and 90,441.56

Step by Step Solution

1. Step 1: Write the proportion equation
   60,709.50 : 90,441.56 = 90,441.56 : x
2. Step 2: Convert to fraction form
   60,709.50/90,441.56 = 90,441.56/x
3. Step 3: Cross multiply
   60,709.50x = 90,441.56 × 90,441.56
4. Step 4: Simplify right side
   60,709.50x = 8,179,676,227.44
5. Step 5: Solve for x
   x = 8,179,676,227.44/60,709.50
6. Step 6: Final answer
   x = 134,734.70