Finding the Third Proportional to 28,123.50 and 39,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,123.50 : 39,187.50 = 39,187.50 : x
2. Step 2: Convert to fraction form
   28,123.50/39,187.50 = 39,187.50/x
3. Step 3: Cross multiply
   28,123.50x = 39,187.50 × 39,187.50
4. Step 4: Simplify right side
   28,123.50x = 1,535,660,156.25
5. Step 5: Solve for x
   x = 1,535,660,156.25/28,123.50
6. Step 6: Final answer
   x = 54,604.16