Finding the Third Proportional to 211,549.50 and 440,595

Step by Step Solution

1. Step 1: Write the proportion equation
   211,549.50 : 440,595 = 440,595 : x
2. Step 2: Convert to fraction form
   211,549.50/440,595 = 440,595/x
3. Step 3: Cross multiply
   211,549.50x = 440,595 × 440,595
4. Step 4: Simplify right side
   211,549.50x = 194,123,954,025
5. Step 5: Solve for x
   x = 194,123,954,025/211,549.50
6. Step 6: Final answer
   x = 917,628.99