Finding the Third Proportional to 51,257.81 and 74,631.38

Step by Step Solution

1. Step 1: Write the proportion equation
   51,257.81 : 74,631.38 = 74,631.38 : x
2. Step 2: Convert to fraction form
   51,257.81/74,631.38 = 74,631.38/x
3. Step 3: Cross multiply
   51,257.81x = 74,631.38 × 74,631.38
4. Step 4: Simplify right side
   51,257.81x = 5,569,842,134.39
5. Step 5: Solve for x
   x = 5,569,842,134.39/51,257.81
6. Step 6: Final answer
   x = 108,663.28