Finding the Third Proportional to 30,121.88 and 45,091.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,121.88 : 45,091.69 = 45,091.69 : x
2. Step 2: Convert to fraction form
   30,121.88/45,091.69 = 45,091.69/x
3. Step 3: Cross multiply
   30,121.88x = 45,091.69 × 45,091.69
4. Step 4: Simplify right side
   30,121.88x = 2,033,260,281.60
5. Step 5: Solve for x
   x = 2,033,260,281.60/30,121.88
6. Step 6: Final answer
   x = 67,501.12