Finding the Third Proportional to 30,399.50 and 45,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,399.50 : 45,477.50 = 45,477.50 : x
2. Step 2: Convert to fraction form
   30,399.50/45,477.50 = 45,477.50/x
3. Step 3: Cross multiply
   30,399.50x = 45,477.50 × 45,477.50
4. Step 4: Simplify right side
   30,399.50x = 2,068,203,006.25
5. Step 5: Solve for x
   x = 2,068,203,006.25/30,399.50
6. Step 6: Final answer
   x = 68,034.11