Finding the Third Proportional to 39,405 and 59,835

Step by Step Solution

1. Step 1: Write the proportion equation
   39,405 : 59,835 = 59,835 : x
2. Step 2: Convert to fraction form
   39,405/59,835 = 59,835/x
3. Step 3: Cross multiply
   39,405x = 59,835 × 59,835
4. Step 4: Simplify right side
   39,405x = 3,580,227,225
5. Step 5: Solve for x
   x = 3,580,227,225/39,405
6. Step 6: Final answer
   x = 90,857.18