Finding the Third Proportional to 55,528.50 and 79,139.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,528.50 : 79,139.25 = 79,139.25 : x
2. Step 2: Convert to fraction form
   55,528.50/79,139.25 = 79,139.25/x
3. Step 3: Cross multiply
   55,528.50x = 79,139.25 × 79,139.25
4. Step 4: Simplify right side
   55,528.50x = 6,263,020,890.56
5. Step 5: Solve for x
   x = 6,263,020,890.56/55,528.50
6. Step 6: Final answer
   x = 112,789.30