Finding the Third Proportional to 51,303.38 and 81,450.56

Step by Step Solution

1. Step 1: Write the proportion equation
   51,303.38 : 81,450.56 = 81,450.56 : x
2. Step 2: Convert to fraction form
   51,303.38/81,450.56 = 81,450.56/x
3. Step 3: Cross multiply
   51,303.38x = 81,450.56 × 81,450.56
4. Step 4: Simplify right side
   51,303.38x = 6,634,194,131.57
5. Step 5: Solve for x
   x = 6,634,194,131.57/51,303.38
6. Step 6: Final answer
   x = 129,313.02