Finding the Third Proportional to 55,530.50 and 79,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,530.50 : 79,142.50 = 79,142.50 : x
2. Step 2: Convert to fraction form
   55,530.50/79,142.50 = 79,142.50/x
3. Step 3: Cross multiply
   55,530.50x = 79,142.50 × 79,142.50
4. Step 4: Simplify right side
   55,530.50x = 6,263,535,306.25
5. Step 5: Solve for x
   x = 6,263,535,306.25/55,530.50
6. Step 6: Final answer
   x = 112,794.51