Finding the Third Proportional to 30,561.75 and 45,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,561.75 : 45,517.50 = 45,517.50 : x
2. Step 2: Convert to fraction form
   30,561.75/45,517.50 = 45,517.50/x
3. Step 3: Cross multiply
   30,561.75x = 45,517.50 × 45,517.50
4. Step 4: Simplify right side
   30,561.75x = 2,071,842,806.25
5. Step 5: Solve for x
   x = 2,071,842,806.25/30,561.75
6. Step 6: Final answer
   x = 67,792.02