Finding the Third Proportional to 211,029 and 302,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,029 : 302,291.50 = 302,291.50 : x
2. Step 2: Convert to fraction form
   211,029/302,291.50 = 302,291.50/x
3. Step 3: Cross multiply
   211,029x = 302,291.50 × 302,291.50
4. Step 4: Simplify right side
   211,029x = 91,380,150,972.25
5. Step 5: Solve for x
   x = 91,380,150,972.25/211,029
6. Step 6: Final answer
   x = 433,021.77