Finding the Third Proportional to 39,528 and 57,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,528 : 57,811.50 = 57,811.50 : x
2. Step 2: Convert to fraction form
   39,528/57,811.50 = 57,811.50/x
3. Step 3: Cross multiply
   39,528x = 57,811.50 × 57,811.50
4. Step 4: Simplify right side
   39,528x = 3,342,169,532.25
5. Step 5: Solve for x
   x = 3,342,169,532.25/39,528
6. Step 6: Final answer
   x = 84,551.95