Finding the Third Proportional to 39,755.50 and 55,722.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,755.50 : 55,722.50 = 55,722.50 : x
2. Step 2: Convert to fraction form
   39,755.50/55,722.50 = 55,722.50/x
3. Step 3: Cross multiply
   39,755.50x = 55,722.50 × 55,722.50
4. Step 4: Simplify right side
   39,755.50x = 3,104,997,006.25
5. Step 5: Solve for x
   x = 3,104,997,006.25/39,755.50
6. Step 6: Final answer
   x = 78,102.33