Finding the Third Proportional to 54,071.50 and 72,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,071.50 : 72,328.50 = 72,328.50 : x
2. Step 2: Convert to fraction form
   54,071.50/72,328.50 = 72,328.50/x
3. Step 3: Cross multiply
   54,071.50x = 72,328.50 × 72,328.50
4. Step 4: Simplify right side
   54,071.50x = 5,231,411,912.25
5. Step 5: Solve for x
   x = 5,231,411,912.25/54,071.50
6. Step 6: Final answer
   x = 96,749.89