Finding the Third Proportional to 39,906.50 and 58,104.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,906.50 : 58,104.75 = 58,104.75 : x
2. Step 2: Convert to fraction form
   39,906.50/58,104.75 = 58,104.75/x
3. Step 3: Cross multiply
   39,906.50x = 58,104.75 × 58,104.75
4. Step 4: Simplify right side
   39,906.50x = 3,376,161,972.56
5. Step 5: Solve for x
   x = 3,376,161,972.56/39,906.50
6. Step 6: Final answer
   x = 84,601.81