Finding the Third Proportional to 30,424.50 and 45,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,424.50 : 45,510.75 = 45,510.75 : x
2. Step 2: Convert to fraction form
   30,424.50/45,510.75 = 45,510.75/x
3. Step 3: Cross multiply
   30,424.50x = 45,510.75 × 45,510.75
4. Step 4: Simplify right side
   30,424.50x = 2,071,228,365.56
5. Step 5: Solve for x
   x = 2,071,228,365.56/30,424.50
6. Step 6: Final answer
   x = 68,077.65