Finding the Third Proportional to 103,016.81 and 217,287.56

Step by Step Solution

1. Step 1: Write the proportion equation
   103,016.81 : 217,287.56 = 217,287.56 : x
2. Step 2: Convert to fraction form
   103,016.81/217,287.56 = 217,287.56/x
3. Step 3: Cross multiply
   103,016.81x = 217,287.56 × 217,287.56
4. Step 4: Simplify right side
   103,016.81x = 47,213,884,817.19
5. Step 5: Solve for x
   x = 47,213,884,817.19/103,016.81
6. Step 6: Final answer
   x = 458,312.42