Finding the Third Proportional to 59,716 and 90,245

Step by Step Solution

1. Step 1: Write the proportion equation
   59,716 : 90,245 = 90,245 : x
2. Step 2: Convert to fraction form
   59,716/90,245 = 90,245/x
3. Step 3: Cross multiply
   59,716x = 90,245 × 90,245
4. Step 4: Simplify right side
   59,716x = 8,144,160,025
5. Step 5: Solve for x
   x = 8,144,160,025/59,716
6. Step 6: Final answer
   x = 136,381.54