Finding the Third Proportional to 28,658.81 and 43,580.53

Step by Step Solution

1. Step 1: Write the proportion equation
   28,658.81 : 43,580.53 = 43,580.53 : x
2. Step 2: Convert to fraction form
   28,658.81/43,580.53 = 43,580.53/x
3. Step 3: Cross multiply
   28,658.81x = 43,580.53 × 43,580.53
4. Step 4: Simplify right side
   28,658.81x = 1,899,262,704.03
5. Step 5: Solve for x
   x = 1,899,262,704.03/28,658.81
6. Step 6: Final answer
   x = 66,271.51