Finding the Third Proportional to 47,353.25 and 78,912

Step by Step Solution

1. Step 1: Write the proportion equation
   47,353.25 : 78,912 = 78,912 : x
2. Step 2: Convert to fraction form
   47,353.25/78,912 = 78,912/x
3. Step 3: Cross multiply
   47,353.25x = 78,912 × 78,912
4. Step 4: Simplify right side
   47,353.25x = 6,227,103,744
5. Step 5: Solve for x
   x = 6,227,103,744/47,353.25
6. Step 6: Final answer
   x = 131,503.20