Finding the Third Proportional to 301,719 and 415,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,719 : 415,621.50 = 415,621.50 : x
2. Step 2: Convert to fraction form
   301,719/415,621.50 = 415,621.50/x
3. Step 3: Cross multiply
   301,719x = 415,621.50 × 415,621.50
4. Step 4: Simplify right side
   301,719x = 172,741,231,262.25
5. Step 5: Solve for x
   x = 172,741,231,262.25/301,719
6. Step 6: Final answer
   x = 572,523.54