Finding the Third Proportional to 302,749.50 and 625,212

Step by Step Solution

1. Step 1: Write the proportion equation
   302,749.50 : 625,212 = 625,212 : x
2. Step 2: Convert to fraction form
   302,749.50/625,212 = 625,212/x
3. Step 3: Cross multiply
   302,749.50x = 625,212 × 625,212
4. Step 4: Simplify right side
   302,749.50x = 390,890,044,944
5. Step 5: Solve for x
   x = 390,890,044,944/302,749.50
6. Step 6: Final answer
   x = 1,291,133.58