Finding the Third Proportional to 53,803.50 and 76,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,803.50 : 76,843.50 = 76,843.50 : x
2. Step 2: Convert to fraction form
   53,803.50/76,843.50 = 76,843.50/x
3. Step 3: Cross multiply
   53,803.50x = 76,843.50 × 76,843.50
4. Step 4: Simplify right side
   53,803.50x = 5,904,923,492.25
5. Step 5: Solve for x
   x = 5,904,923,492.25/53,803.50
6. Step 6: Final answer
   x = 109,749.80