Finding the Third Proportional to 28,471.50 and 45,339.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,471.50 : 45,339.75 = 45,339.75 : x
2. Step 2: Convert to fraction form
   28,471.50/45,339.75 = 45,339.75/x
3. Step 3: Cross multiply
   28,471.50x = 45,339.75 × 45,339.75
4. Step 4: Simplify right side
   28,471.50x = 2,055,692,930.06
5. Step 5: Solve for x
   x = 2,055,692,930.06/28,471.50
6. Step 6: Final answer
   x = 72,201.78