Finding the Third Proportional to 38,218.50 and 51,617.25

Step by Step Solution

1. Step 1: Write the proportion equation
   38,218.50 : 51,617.25 = 51,617.25 : x
2. Step 2: Convert to fraction form
   38,218.50/51,617.25 = 51,617.25/x
3. Step 3: Cross multiply
   38,218.50x = 51,617.25 × 51,617.25
4. Step 4: Simplify right side
   38,218.50x = 2,664,340,497.56
5. Step 5: Solve for x
   x = 2,664,340,497.56/38,218.50
6. Step 6: Final answer
   x = 69,713.37