Finding the Third Proportional to 7,713 and 12,301.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,713 : 12,301.50 = 12,301.50 : x
2. Step 2: Convert to fraction form
   7,713/12,301.50 = 12,301.50/x
3. Step 3: Cross multiply
   7,713x = 12,301.50 × 12,301.50
4. Step 4: Simplify right side
   7,713x = 151,326,902.25
5. Step 5: Solve for x
   x = 151,326,902.25/7,713
6. Step 6: Final answer
   x = 19,619.72