Finding the Third Proportional to 51,257.81 and 68,958.84

Step by Step Solution

1. Step 1: Write the proportion equation
   51,257.81 : 68,958.84 = 68,958.84 : x
2. Step 2: Convert to fraction form
   51,257.81/68,958.84 = 68,958.84/x
3. Step 3: Cross multiply
   51,257.81x = 68,958.84 × 68,958.84
4. Step 4: Simplify right side
   51,257.81x = 4,755,322,131.34
5. Step 5: Solve for x
   x = 4,755,322,131.34/51,257.81
6. Step 6: Final answer
   x = 92,772.63