Finding the Third Proportional to 64,315.75 and 91,744.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,315.75 : 91,744.25 = 91,744.25 : x
2. Step 2: Convert to fraction form
   64,315.75/91,744.25 = 91,744.25/x
3. Step 3: Cross multiply
   64,315.75x = 91,744.25 × 91,744.25
4. Step 4: Simplify right side
   64,315.75x = 8,417,007,408.06
5. Step 5: Solve for x
   x = 8,417,007,408.06/64,315.75
6. Step 6: Final answer
   x = 130,870.08