Finding the Third Proportional to 7,123.50 and 15,218.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,123.50 : 15,218.50 = 15,218.50 : x
2. Step 2: Convert to fraction form
   7,123.50/15,218.50 = 15,218.50/x
3. Step 3: Cross multiply
   7,123.50x = 15,218.50 × 15,218.50
4. Step 4: Simplify right side
   7,123.50x = 231,602,742.25
5. Step 5: Solve for x
   x = 231,602,742.25/7,123.50
6. Step 6: Final answer
   x = 32,512.49