Finding the Third Proportional to 55,012.45 and 79,923.74

Step by Step Solution

1. Step 1: Write the proportion equation
   55,012.45 : 79,923.74 = 79,923.74 : x
2. Step 2: Convert to fraction form
   55,012.45/79,923.74 = 79,923.74/x
3. Step 3: Cross multiply
   55,012.45x = 79,923.74 × 79,923.74
4. Step 4: Simplify right side
   55,012.45x = 6,387,804,877.46
5. Step 5: Solve for x
   x = 6,387,804,877.46/55,012.45
6. Step 6: Final answer
   x = 116,115.63