Finding the Third Proportional to 47,305.50 and 78,839.25

Step by Step Solution

1. Step 1: Write the proportion equation
   47,305.50 : 78,839.25 = 78,839.25 : x
2. Step 2: Convert to fraction form
   47,305.50/78,839.25 = 78,839.25/x
3. Step 3: Cross multiply
   47,305.50x = 78,839.25 × 78,839.25
4. Step 4: Simplify right side
   47,305.50x = 6,215,627,340.56
5. Step 5: Solve for x
   x = 6,215,627,340.56/47,305.50
6. Step 6: Final answer
   x = 131,393.33