Finding the Third Proportional to 57,908.50 and 91,769.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,908.50 : 91,769.75 = 91,769.75 : x
2. Step 2: Convert to fraction form
   57,908.50/91,769.75 = 91,769.75/x
3. Step 3: Cross multiply
   57,908.50x = 91,769.75 × 91,769.75
4. Step 4: Simplify right side
   57,908.50x = 8,421,687,015.06
5. Step 5: Solve for x
   x = 8,421,687,015.06/57,908.50
6. Step 6: Final answer
   x = 145,430.93