Finding the Third Proportional to 30,991,067.50 and 67,562,273.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,991,067.50 : 67,562,273.25 = 67,562,273.25 : x
2. Step 2: Convert to fraction form
   30,991,067.50/67,562,273.25 = 67,562,273.25/x
3. Step 3: Cross multiply
   30,991,067.50x = 67,562,273.25 × 67,562,273.25
4. Step 4: Simplify right side
   30,991,067.50x = 4,564,660,766,707,666
5. Step 5: Solve for x
   x = 4,564,660,766,707,666/30,991,067.50
6. Step 6: Final answer
   x = 147,289,562.28