Finding the Third Proportional to 30,307.50 and 70,791

Step by Step Solution

1. Step 1: Write the proportion equation
   30,307.50 : 70,791 = 70,791 : x
2. Step 2: Convert to fraction form
   30,307.50/70,791 = 70,791/x
3. Step 3: Cross multiply
   30,307.50x = 70,791 × 70,791
4. Step 4: Simplify right side
   30,307.50x = 5,011,365,681
5. Step 5: Solve for x
   x = 5,011,365,681/30,307.50
6. Step 6: Final answer
   x = 165,350.68