Finding the Third Proportional to 51,605.40 and 72,672.37

Step by Step Solution

1. Step 1: Write the proportion equation
   51,605.40 : 72,672.37 = 72,672.37 : x
2. Step 2: Convert to fraction form
   51,605.40/72,672.37 = 72,672.37/x
3. Step 3: Cross multiply
   51,605.40x = 72,672.37 × 72,672.37
4. Step 4: Simplify right side
   51,605.40x = 5,281,272,704.24
5. Step 5: Solve for x
   x = 5,281,272,704.24/51,605.40
6. Step 6: Final answer
   x = 102,339.53