Finding the Third Proportional to 53,820.70 and 77,040.49

Step by Step Solution

1. Step 1: Write the proportion equation
   53,820.70 : 77,040.49 = 77,040.49 : x
2. Step 2: Convert to fraction form
   53,820.70/77,040.49 = 77,040.49/x
3. Step 3: Cross multiply
   53,820.70x = 77,040.49 × 77,040.49
4. Step 4: Simplify right side
   53,820.70x = 5,935,237,436.49
5. Step 5: Solve for x
   x = 5,935,237,436.49/53,820.70
6. Step 6: Final answer
   x = 110,277.96