Finding the Third Proportional to 30,308.50 and 65,862.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,308.50 : 65,862.75 = 65,862.75 : x
2. Step 2: Convert to fraction form
   30,308.50/65,862.75 = 65,862.75/x
3. Step 3: Cross multiply
   30,308.50x = 65,862.75 × 65,862.75
4. Step 4: Simplify right side
   30,308.50x = 4,337,901,837.56
5. Step 5: Solve for x
   x = 4,337,901,837.56/30,308.50
6. Step 6: Final answer
   x = 143,124.93