Finding the Third Proportional to 54,315.28 and 79,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,315.28 : 79,528.50 = 79,528.50 : x
2. Step 2: Convert to fraction form
   54,315.28/79,528.50 = 79,528.50/x
3. Step 3: Cross multiply
   54,315.28x = 79,528.50 × 79,528.50
4. Step 4: Simplify right side
   54,315.28x = 6,324,782,312.25
5. Step 5: Solve for x
   x = 6,324,782,312.25/54,315.28
6. Step 6: Final answer
   x = 116,445.73