Finding the Third Proportional to 39,723 and 58,247.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,723 : 58,247.50 = 58,247.50 : x
2. Step 2: Convert to fraction form
   39,723/58,247.50 = 58,247.50/x
3. Step 3: Cross multiply
   39,723x = 58,247.50 × 58,247.50
4. Step 4: Simplify right side
   39,723x = 3,392,771,256.25
5. Step 5: Solve for x
   x = 3,392,771,256.25/39,723
6. Step 6: Final answer
   x = 85,410.75