Finding the Third Proportional to 51,905.25 and 69,747.75

Step by Step Solution

1. Step 1: Write the proportion equation
   51,905.25 : 69,747.75 = 69,747.75 : x
2. Step 2: Convert to fraction form
   51,905.25/69,747.75 = 69,747.75/x
3. Step 3: Cross multiply
   51,905.25x = 69,747.75 × 69,747.75
4. Step 4: Simplify right side
   51,905.25x = 4,864,748,630.06
5. Step 5: Solve for x
   x = 4,864,748,630.06/51,905.25
6. Step 6: Final answer
   x = 93,723.63